等心

I. What This Concept Is About

1. Core Definition: Compassionate without Defilement, Equal without Coldness

In the *Mahāratnakūṭa Sūtra* (《大宝积经》) there is an extremely concise sentence that can serve as the "entry line" for understanding 等心 (sama-citta, "equal mind"):

"安住平等心，则不生憎爱。" *"Abiding in an equal mind, one gives rise to neither aversion nor affection."*

But this sentence itself is easy to read too shallowly. Most people, upon first reading, think: "Oh, it means not disliking, not craving, being roughly the same toward everyone." — and that falls directly into the most common misreading. Throughout the *Mahāratnakūṭa Sūtra*, when it teaches "equal mind," it repeatedly clarifies one thing:

Equal mind is not the cancellation of feeling, but the purification of compassion.

The bodhisattva (菩萨) "grieves for all" (feels genuine sorrow for the suffering of all beings), while simultaneously "abiding in an equal mind" (not dividing close from distant, thick from thin, within that grief). If a person is truly equal and compassionate toward all beings yet is cold and distant, that is not equal mind. If a person is warmly compassionate but only toward those they like, their own children, those who please them — then compassion itself has been polluted by affection and aversion. What equal mind must resolve is the question of the purity of compassion — not the question of whether compassion exists at all.

2. First Layer: Beyond Affection and Aversion — No Leaning toward Self or Other, Near or Far, Favorable or Adverse

The most direct expression of equal mind is not leaning toward self or other, near or far, favorable or adverse:

- Toward oneself — not giving rise to resentment when thwarted, not giving rise to arrogance when benefited; - Toward others — not giving rise to aversion when opposed, not giving rise to attachment when pleased; - Toward circumstances — when the "eight winds" (八风, aṣṭau lokadharmāḥ) of pain and pleasure, gain and loss, slander and praise, honor and disgrace arrive, the mind is not blown about.

This appears simple, but landing it in the human heart is extremely difficult. The vast majority of people live their whole lives with their minds pulled along by "objects of experience": elated when approved, shattered when disparaged, clinging when drawn close, resentful when neglected. What equal mind addresses is precisely this layer — letting the mind not be determined by external circumstances.

The *Mahāratnakūṭa Sūtra* puts it concretely: "Not holding oneself high upon gain, not harboring resentment upon being slighted or reviled." This is not teaching one to pretend not to suffer, but rather — do not let these "passing winds" become the master.

3. Second Layer: In Concert with Loving-Kindness, Compassion, Sympathetic Joy, and Guarding

Equal mind cannot exist in isolation. It is the inner guarantee of the four immeasurables (四无量心, catvāri apramāṇāni): loving-kindness, compassion, sympathetic joy, and guarding.

The scripture explicitly presents the four immeasurables as "kindness, compassion, joy, and guarding," using "guarding" rather than "relinquishing" for the fourth — this is important (we will return to it under "Common Misreadings"). The respective functions of these four mind-practices are:

- 慈 (maitrī, loving-kindness): universally bestowing benefit upon all beings; - 悲 (karuṇā, compassion): grieving for the suffering of all beings; - 喜 (muditā, sympathetic joy): genuinely rejoicing in others' gain, without envy; - 护 (upekṣā, guarding): the mind not being defiled by affection and aversion, not wavering with external circumstances — the original sense of "guarding" is "protecting the mind from being shaken."

Equal mind is the inner quality that makes these four mind-practices universal, leak-free, and unbiased. Without equal mind, kindness becomes partiality (kind only to one's own children), compassion becomes selective grief (grieving only for one's own people), joy becomes sour grapes (feeling uneasy at others' good fortune), and guarding becomes indifference (caring about nothing).

Thus the scripture says: "not envying others" — this is sympathetic joy; "practicing great kindness with an equal mind" — this is kindness and equal mind operating together; "grieving for all while abiding in an equal mind" — compassion and equal mind traveling together.

4. Third Layer: The "Threefold Non-Discrimination" in Giving

Equal mind is not an abstract mental state; it must land in concrete action. The most detailed testing ground chosen by the *Mahāratnakūṭa Sūtra* is giving (布施, dāna).

For giving to be complete, one must hold a "mind of equal non-discrimination" toward all three: the thing given, the giver, and the recipient. The scripture lists what should not be discriminated:

- Not distinguishing "this person should be given to, that person should not" — allocating by relationship; - Not reckoning "great merit or little merit, generous giving or meager giving" — calculating by return; - Not distinguishing "give often or occasionally, give in person or not" — by one's own convenience; - Not distinguishing "fine or coarse, good or bad" — by the item's value; - Not distinguishing "keeping precepts or breaking them, proper conduct or wrong conduct, much merit or little" — by assessing the recipient's status.

If this passage were put in modern language, it is almost "the easiest pits to fall into in the psychology of donation." People instinctively allocate this way: give to acquaintances, not strangers; give to the "deserving," not to those who "don't look like they're trying"; give to those who can return the favor, avoiding potential trouble; think about how much merit one accumulates while giving... The *Mahāratnakūṭa Sūtra* says all of these discriminations must be relinquished — this is what the scripture calls "cultivating an equal intention, not harboring 'several'" (修平等志，不怀若干).

The word "若干" (several) is crucial: it means not "one kind of discrimination" but "manifold tendencies toward differentiation." As long as the mind is still classifying, still ranking, equal mind has not yet arrived.

5. Fourth Layer: The "Equality of Dharma" in Giving the Dharma

Equal mind operates not only in material giving, but also in giving the Dharma (法施, dharma-dāna).

The scripture warns: one must not give the Dharma (doctrine, methods of practice, teachings) only to those who "uphold the Dharma" or "are complete in Dharma-practice," while refusing those who "cannot accord with the Dharma, cannot be complete in it." There is a very subtle discrimination here — people always want to give good things to the "deserving": to the intelligent, to those who can understand, to those who can learn. But the scripture's logic is:

"对凡夫施法，不认为法有所损耗；对圣贤施法，也不认为法有所增益。" *"Giving the Dharma to ordinary people, one does not think the Dharma is thereby diminished; giving the Dharma to sages, one does not think the Dharma is thereby increased."*

Why? Because all dharmas are originally pure, equal, and without distinction. The Dharma itself does not depend on "who can catch it"; the Dharma is just the Dharma. When a bodhisattva abides in the equality of dharmas, the act of giving the Dharma carries no subtle arrogance of "I am selecting people." Hence the scripture concludes with four words — "what is given should be equal" (所施当等).

6. Fifth Layer: Five Similes — Earth, Water, Fire, Wind, Space

The state of equal mind is hard to express in words, so the *Mahāratnakūṭa Sūtra* uses a set of five similes to portray it together. These five similes must be preserved one-to-one, because each points to a different facet of equal mind:

- Like the great earth: bearing all things, neither increasing nor decreasing toward good or evil — no matter how evil the person treading on it, the earth does not refuse; no matter how good the person standing on it, the earth does not elevate them specially; - Like flowing water: washing away filth and nourishing the world — water does not distinguish "a clean person comes to wash" or "a dirty person does not come to wash"; it gives to everything that flows through it; - Like fire: burning away afflictions and radiating light universally — fire burns all combustible things equally, without selecting its object; at the same time it is itself light, able to break through darkness; - Like wind: without reliance or attachment, flowing through all places — the wind does not stay anywhere, yet it reaches every space, detained by nothing; - Like space (虚空, ākāśa): free from views, pure, entering all things — space is not seen, not polluted, yet present everywhere; all things operate within space, while space itself neither increases nor decreases.

Taken together, these five similes portray the state of equal mind as both universally equal and unaltered by any object. It gives and receives, it illumines and does not cease, it flows everywhere and does not stagnate.

7. Sixth Layer: Equal Mind as Dharma-Realm — The Ultimate Mark of Neither Increase nor Decrease

The scripture then elevates equal mind to a deeper level: "equal mind as dharma-realm" (等心法界).

The dharma-realm (法界, dharmadhātu) is the Buddhist term for the substance of all dharmas, reality itself. Equal mind is not merely a psychological attitude; it corresponds to reality — hence the mind can neither increase nor decrease and always enters equality.

The scripture sets side by side a set of relative concepts to illustrate this state:

- Bondage (束缚) and liberation (解脱, vimokṣa) — neither bound nor liberated (无缚无解); - Birth-and-death (生死, saṃsāra) and nirvāṇa (涅槃) — neither coming nor going (无来无去); - The whole — abiding in stillness (安住寂静).

This layer is the "ultimate mark" of equal mind: it is not merely "thinking more openly" at the level of mental states, but at the level of reality, all relative dharmas are originally equal and non-dual. Yet precisely because one has penetrated this equality, one can be even more stably equal and compassionate in the world — rather than becoming a nihilism that cancels all distinctions.

8. Related Virtues: Knowing the Minds of Beings, Taming One's Own Mind and Faculties

The scripture also mentions that being able to respond to beings equally requires support from a set of related virtues:

- Knowing the minds of beings (知众生心) — being able to understand others' circumstances; - Taming one's own mind (调伏自心) — first softening one's own affection and aversion; - Taming the faculties (调伏诸根) — not letting the eyes, ears, nose, tongue, body, and mind be dragged away directly by external circumstances.

These are the "preparatory work" of equal mind: if a person cannot even see clearly their own arising thoughts, their pursuit of "equal mind" becomes another form of self-performance.

Additionally, equal mind is listed as a cause of the bodhisattva's excellent marks and of being revered — "with an equal mind toward beings, beholders never tire of looking" (等心于众生，观者无厌足). This means: a person who truly abides in equal mind does not become wearisome to look at over time, because what one senses from them is stability, clarity, and an absence of both ingratiation and rejection.

9. Terminology: The Multiple Rendering Names Used Side by Side in the Scripture

Throughout the sūtra, when speaking of equal mind, several rendering names are used, each with its own emphasis:

- "等心" — emphasizing the equality of the mind-practice; - "平等心" — the same, in fuller expression; - "等无分别心" — used for the non-discrimination among thing given, giver, and recipient in giving; - "平等志" — emphasizing not harboring manifold tendencies toward differentiation; - "众生等心" — highlighting equality toward all beings; - "平意" — a more colloquial expression.

These names are not mere synonyms repeated; they are the same quality with different emphases on different occasions. When organizing terminology, these original terms from the sūtra should be preserved, and one should not hastily merge them into a single "equanimous mind" (平等心).

II. Walking Through Everyday Life

Now let us take the layers above and walk them through the concrete lives of contemporary people. This step is not for "doing," but for "seeing" — seeing where one's own mind is being stirred by affection, aversion, discrimination, increase, and decrease.

Scenario One: The Subtle Heartbeat While Scrolling Through Moments

At night you scroll through your social feed and see three kinds of posts:

- A (your college classmate, got promoted): your heart gives a little lurch — you might float up "He's not even as good as me, how did he get promoted?"; - B (your fellow student, bought a new bag): another taste in your heart — envy, sourness, disdain, three emotions mixed together; - C (someone you don't like, posted travel photos): a cold contempt in your heart.

Walk-through:

- Your reactions to A, B, and C are different — this in itself is not a problem, because the situations differ; - The problem is: all three reactions carry a comparative mind of "me" and "him" — A touches "self-evaluation," B touches "self-feeling," C touches "self-position." - Equal mind here does not ask you to "pretend not to care," but to see: A's promotion is A's affair, B's bag is B's affair, C's travel is C's affair — can they simply not enter your self-evaluation system? - If they cannot, every post is draining you. Equal mind is one of the antidotes to this drain. - Common mis-mapping: many people think "equal mind" means "not liking posts" or "swiping past with a blank face" — that is merely suppression. Equal mind is one layer deeper: the string that gets plucked is truly not there in the mind.

Scenario Two: A Parent's Favoritism toward Children

In a family with two children, as a parent (or observing your own parents):

- The elder is obedient, gets good grades — your heart secretly leans toward them; - The younger is mischievous, always getting into trouble — your heart secretly frowns; - The elder gets into a good university — you joyfully treat everyone to a meal; - The younger makes a mistake — you feel "iron that cannot become steel."

Walk-through:

- This is actually the strictest examination hall for equal mind. Because children are the people you love most, "love" is also the most easily polluted into partiality. - What the *Mahāratnakūṭa Sūtra* says about "not holding oneself high upon gain, not harboring resentment upon being reviled" applies here as: do not let the elder's good grades become your pride, and do not let the younger's failures become your shame. - The elder's goodness is their own effort; the younger's difficulty is also their own lesson. The love you can give is equal, but the "labels of approval" you give are often unequal — the latter is precisely what equal mind must remove. - Common mis-mapping: many people think "equal mind" toward children means "keeping the water level even" — but that is formal equality. True equal mind is: there really is no subtle judgment in your heart that "the elder saves me more worry."

Scenario Three: A Colleague's Promotion at Work

You and your colleague are equally capable, and you even think you are stronger — but the one promoted is them.

Walk-through:

- The eight winds' "praise" (being recognized), "blame" (being disparaged), "honor" (being commended), and "disgrace" (being defamed) all hit at once; - In your heart there may be: anger, refusal to accept, sourness, rational analysis after calming down, and the discomfort that resurfaces a few days later — this is a multi-wave disturbance. - Equal mind does not ask you to "think more openly" or "not care about the promotion." The promotion is a real difference; you may legitimately strive for it. - What equal mind addresses is: can this matter not become "my failure"? That is, does your "I" always need to be confirmed by external circumstances (position, evaluation, income)? - If so, then every external evaluation is deciding your internal state — you are living in the state of being blown by the eight winds. - Common mis-mapping: many people equate "equal mind" with "Buddha-like / not ambitious" — wrong. Equal mind is striving with full effort while not letting the result become the source of your inner worth.

Scenario Four: Giving Directions to a Stranger vs. Giving Directions to "Someone You Dislike"

The scenario is tiny, but can be walked through:

- Someone asks for directions; you help warmly; - Someone you find uncomfortable asks for directions; you are cold or perfunctory.

Walk-through:

- This is precisely the manifestation of the scripture's "mind of equal non-discrimination" (等无分别心) in the smallest place. - Equal mind does not ask you to "be equally warm to everyone" (that is performance), but to see your own subtle discrimination: why am I willing to help this person and not that one. - The seeing itself is enough to loosen that discrimination. - Common mis-mapping: many people think they are already "quite nice to everyone" — but as soon as you meet one person who makes your heart lurch, equal mind is immediately exposed. Equal mind is never established in comfort; it is established in discomfort.

Scenario Five: "Equal-Mind Loss" in the Age of Information Feeds

There is one scenario in contemporary life that especially needs equal mind: algorithmic feeds.

Algorithms push content you like to you repeatedly, and filter out viewpoints you do not agree with. This is in effect training a brain that is continuously reinforced in its preferences — every like, every pause, lets the algorithm understand better "what you love, what you hate," and then feeds you double.

Walk-through:

- When you find yourself increasingly unable to stay calm on some topic, increasingly easily provoked — this is often not that you have become more extreme, but that your information environment has already been trained by the "affection-aversion" algorithm; - Equal mind here is active counter-training: can you go read an article that makes you uncomfortable, and after reading it discover — it has not changed you, and you have not been changed by it; - This "ability to actively pass through one's own affection and aversion" is closest, among the five similes of the *Mahāratnakūṭa Sūtra*, to "like space" — space does not refuse anything from entering, but neither can you alter space. - Common mis-mapping: many people equate "equal mind" with "I should not have preferences" — wrong. Equal mind is being aware of your preferences and not being manipulated by them.

Scenario Six: The "Eight Winds" in Adversity

The death of a loved one, unemployment, serious illness — these are the "pain" among the eight winds.

Walk-through:

- Equal mind does not ask you not to grieve, not to weep. Grief and tears are naturally human, the spontaneous outflow of a compassionate heart; they are not the object of equal mind. - What equal mind addresses is: when suffering comes in succession, will your "sense of self" be swallowed by the suffering? That is, will you, because of one bad thing, feel that your whole life is bad, that you have been mistreated, that living is meaningless? - Equal mind is preserving, in the abyss, the bit that is "not swallowed" — you may hurt, but your mind need not be entirely occupied by the pain. - Conversely, in favorable circumstances too: when promoted, given a raise, praised, equal mind addresses — do not let good things blow you up into an inflated "I". - Common mis-mapping: many people think equal mind means "be calm, be rational, do not have great joy or great sorrow" — that is merely emotional management, not equal mind. Equal mind is a stability on a deeper, ontological level.

III. Why Contemporary People Need It

1. The Attention Economy Amplifies Affection and Aversion

The core commercial logic of the contemporary information environment is turning your affection and aversion into clicks. Every platform trains your affection-aversion reactions, because the dwell time produced by affection-aversion reactions is the longest. This means:

- Your affection and aversion are being systematically amplified by external systems in the contemporary age; - If you do not cultivate internally an ability "not to be plucked by affection and aversion," you will find yourself increasingly easily provoked, increasingly easily pleased, increasingly unable to maintain stability amid complex information; - Equal mind does not ask you to leave the information environment (that would be impossible), but to have within you the ability to resist disturbance.

2. Social Media as the High-Frequency Version of the Eight Winds

In ancient times, the amount of "praise and blame, honor and disgrace, gain and loss, pain and pleasure" a person could receive in a day was limited. Today, a single post, a single short video, a single trending topic can put you through an entire intense round of the eight winds within an hour:

- In the morning you are moved to tears by a heartwarming news story; - In the afternoon you tremble with anger at a social news item; - At night you lose sleep, stimulated by a friend's success.

This kind of high-frequency impact of the eight winds is something the ancients rarely experienced. In this environment, equal mind is no longer a luxury, but a necessity for spiritual survival — otherwise your mind will remain in a state of chronic stress.

3. What Neuroscience Can Tell Us (and What It Cannot)

There are findings in brain science relevant to equal mind that are worth mentioning, but with caution:

- The default mode network: the brain has a default-running "self-evaluation system" that keeps pulling external events into the evaluative loop of "what does this have to do with me." What equal mind does is reduce this self-involvement. - The neural cost of social comparison: research shows that frequent social comparison (the "me vs. him" contrast while scrolling feeds) activates brain regions associated with physical pain (such as the dorsal anterior cingulate cortex). In other words, envy and being struck truly do "hurt." - The effect of meditation training: long-term mindfulness practitioners show different response patterns between the prefrontal cortex and the amygdala — a diminished "overreaction" to negative emotions.

But to be honest:

- These studies can only prove that "the mind being plucked by affection and aversion" is real at the neural level and carries a cost; - They cannot prove that equal mind exists as a state of liberation, nor can they prove what the ultimate layer of equal mind (neither increasing nor decreasing, abiding in stillness) is at the neural level; - Equating "equal mind" with "reducing amygdala activation" is a simplification — the former is cultivation and liberation, the latter is adaptive brain change; the two are not on the same dimension.

So using neuroscience as a reference is suggestive, but not demonstrative.

4. What "Equal Mind" Means in the Algorithm Age

Equal mind in the algorithm age has two layers:

- First layer: recognizing that your affection and aversion are being fed by algorithms, and actively doing things that "counter the feeding" — e.g., reading viewpoints you disagree with, following information sources that do not cater to your tastes, conversing with people "not like you"; - Second layer, deeper: do not take algorithmic feedback as the source of your worth. Like counts, follower counts, view counts — these contemporary variants of "praise and blame" are replacing the ancient fame and disgrace to become the new carriers of the eight winds.

Equal mind is the antidote to this new layer of the eight winds.

IV. Common Misreadings and Clarifications

1. "Equal Mind = Coldness / Apathy"

This is the most widespread misreading. People mistake "equal mind" for "not caring about anything" — neither loving anyone in particular, nor grieving for anyone in particular.

Clarification: The scripture repeatedly emphasizes that equal mind travels together with kindness, compassion, joy, and guarding. Equal mind is not the cancellation of feeling, but the purification of feeling — removing the pollutions of partiality, sour grapes, and selective empathy, leaving behind compassion that is truly universal and stable. A cold person lacks the power of compassion and cannot be said to have equal mind.

2. "Equal Mind = Buddhist-Style / Not Ambitious"

People mistake "equal mind" for "not caring, muddling along."

Clarification: Equal mind is the mind not being determined by external circumstances, not behavior being unstriving. A person can work extremely hard, strive for promotion, pursue goals — while internally not taking the result as the source of self-worth. The former is behavior; the latter is a state of mind. Equal mind addresses the latter.

The difference between a truly "Buddhist-style" attitude and equal mind: the former is often the posture of having already given up; equal mind is the posture of giving full effort without grasping.

3. "Equal Mind = All Things Equal, Cancel All Distinctions"

People mistake "equal mind" for "everything is the same" — good people and bad people the same, good things and bad things the same, family and strangers the same.

Clarification: Equal mind is the mind not leaning toward partiality because of distinctions, not cancelling the distinctions inherent in things themselves.

A bodhisattva still feels compassion seeing a wicked person, still rejoices seeing a good person — these differentiated responses are reasonable and wise. What equal mind addresses is: within these responses, do not have the adhesion of "me and him."

The earth simile makes this clear: the earth bears good and evil, but the earth does not fail to distinguish good from evil — it simply does not increase or decrease, does not refuse, does not elevate.

4. "Equal Mind = Cancelling Compassion and Joy"

People mistake "equal" for flattening all emotions.

Clarification: Equal mind exists precisely so that compassion can become truly universal. If your compassion has partiality (loving only your own child, grieving only for your own people, rejoicing only for those you know), then that compassion is leaky and not ultimate. Equal mind is the necessary condition for compassion to reach the state of "pervading everything."

The scripture says "practicing great kindness with an equal mind" — great kindness (大慈) is universal kindness. Equal mind is the inner quality that makes great kindness possible.

5. "The Fourth Immeasurable Should Be 'Relinquishing,' Not 'Guarding'"

This is a common confusion in terminology translation.

Clarification: This passage of the *Mahāratnakūṭa Sūtra* uses "guarding" (护). This is not a clerical error; rather, two different Chinese renderings correspond to different emphases of the same Sanskrit *upekṣā*:

- "舍" (relinquishing): emphasizing letting go, renunciation — leaning toward a behavioral posture; - "护" (guarding): emphasizing protecting the mind from defilement — leaning toward inner protection.

This sūtra uses "guarding" because it is in the context of equal mind — the point is not "what to relinquish," but "guarding the mind so it is not shaken by affection and aversion." When organizing terminology, this rendering should be preserved rather than hastily rewritten as "relinquishing."

6. "Equal Mind = Psychological Balance"

People mistake equal mind for a technique of emotional management.

Clarification: Emotional management is a minor use of equal mind, not its major use. The scripture ultimately elevates equal mind to "equal mind as dharma-realm" — neither increasing nor decreasing, neither bound nor liberated, abiding in stillness. This is no longer at the level of "psychological balance," but a state of cultivation corresponding to reality.

Treating equal mind as a psychological technique is like understanding the ocean as "a lot of water" — not wrong, but missing the crucial scale.

7. "Equal Mind = Being Equally Nice to Everyone"

People mistake equal mind for a behavioral standard ("I should be equally polite and equally warm to everyone").

Clarification: Equal mind is a mind-practice, not a behavioral template. A person with equal mind responds wisely according to circumstances — perhaps more patient with one person, more direct with another — but without the subtle defilement of "whom do I favor more" in the mind. Behavior may vary with wisdom; the mind does not lean with affection and aversion — this is equal mind.

V. Finally: Equal Mind Is Not the Destination, but the Entrance

The *Mahāratnakūṭa Sūtra* does not teach equal mind and then stop. Equal mind is one among the many mind-practices of the bodhisattva — it travels with kindness, compassion, joy, and guarding; it is actualized through giving, giving the Dharma, taming the mind, and taming the faculties; it is connected to the dharma-realm, stillness, and neither increasing nor decreasing.

In the whole path of liberation, equal mind holds this position:

- It is the purifier of compassion — without equal mind, compassion has partiality; - It is the stabilizer against the eight winds — without equal mind, the mind is determined by external circumstances; - It is the entrance to the equality of the dharma-realm — without equal mind, ultimate equality is only a concept.

For contemporary readers, equal mind can serve as an excellent entry point for practice:

- If you are being drained by the repeated plucking of affection and aversion — equal mind is the antidote; - If your compassion has partiality — equal mind is the purification; - If you are being battered in turn by the high-frequency eight winds of the information age — equal mind is the stabilizer; - If you want to explore a deeper state of existence — equal mind can lead to the neither-increasing-nor-decreasing of the dharma-realm.

But please remember one sentence: equal mind is not for becoming a "good person" with a blank face, but so that compassion can truly reach all beings.