What This Concept Is Saying
I. The Third Member of the Three Evil Courses
Buddhism classifies all evil karma into three great categories: bodily evil courses (kāya-duścarita: killing, stealing, sexual misconduct), verbal evil courses (vāk-duścarita: false speech, divisive speech, harsh speech, idle chatter), and mental evil courses. The third member—the mental evil course—admits only three members: greed (lobha), hatred (dveṣa), and wrong view (mithyā-dṛṣṭi). The *Abhidharmakośa-bhāṣya* (阿毘達磨俱舍論, T1559) sums this up in a single verse: "The evil bodily, verbal, and mental actions are called the three evil courses; together with greed, hatred, and wrong view, the three good courses are their exact opposites." The three good courses (kuśala-carita: non-greed, non-hatred, right view) are precisely the reverse of these three.
At first glance this seems strange: why is it not "intention" (cetanā) but rather "greed, hatred, wrong view"? For according to the Bhagavān's classification that gathers the three karmic paths, the substance of bodily karma is the body, the substance of verbal karma is speech, and the substance of mental karma is "intention" (思, cetanā, volitional construction). If so, the substance of the three mental evil courses ought logically to be "evil intention." Why then does the treatise master insist on greed, hatred, and wrong view?
Here lies the most delicate stroke in the entire *Kośa*.
II. Karma That Is Not Karma: The True Identity of the Three Mental Evil Courses
The treatise master follows the Vaibhāṣika masters and maintains that the three mental evil courses belong to the category of "not karma" (na-karma)—that is, greed, hatred, and wrong view are themselves afflictions (kleśa), not karma. Karma has its own separate substance, namely "intention." The verse says:
「然意惡行復有三種，謂非意業貪、瞋、邪見，貪等離思別有體故。」
*"However, the mental evil courses are again of three kinds: namely, greed, hatred, and wrong view, which are not mental karma; for greed and the rest have their own separate substance apart from intention."*
In other words: every time you give rise to a thought of greed, a thought of hatred, or a wrong view, that thought itself (according to the Vaibhāṣikas) is the arising of an affliction; while the "intention" that accompanies it, as the "volition," is what constitutes "mental karma" in the strict sense. The two each have their own substance, distinctly separate.
But the Bhagavān in the sūtras clearly sometimes calls greed, hatred, and wrong view directly "mental karma." How is this handled? The treatise master explains this as the hidden intent of the sūtras (sandhāya) rather than a definition: the three afflictions are given the name "karma" because—
- Intention turns by relying on them as its gate: in constructing an evil deed, the will cannot move unless it passes through the gate of greed, hatred, and wrong view; without this key, evil intention cannot turn at all; - Through them, one can experience unpleasant fruits: the true instigator of evil fruits is precisely these three afflictions lurking behind intention; - They are despised and reviled by the wise: a person who clearly sees the causes behind actions never condemns merely the action itself, but rather the thought that charged the action with potential.
Thus the sūtra says, "This course is evil, therefore it is called an evil course"—it is called "karma" because it possesses the functional characteristics of an evil course. But strictly speaking, the substance of karma is intention; greed, hatred, and wrong view are the "gate" of intention, the true culprit. This is the crucial point of divergence between the Vaibhāṣikas and the *Dārṣṭāntikas* (譬喻者, who maintain that greed, hatred, and wrong view "are" mental karma).
III. The "Ultimate Agent" of the Three—Who Commands Whom
The treatise master further reveals the division of labor among the three evil courses with a verse:
「殺麁語瞋恚，究竟皆由瞋； 盜邪行及貪，皆由貪究竟； 邪見癡究竟，許所餘由三。」
*"Killing, harsh speech, and hatred—their culmination is entirely through hatred; stealing, sexual misconduct, and greed—all culminate through greed; wrong view culminates through ignorance; the remaining [evil paths] are admitted to be through all three."*
Let me walk you through the ten evil paths (daśākuśala-karmapatha) one by one:
- Hatred (dveṣa) is the true instigator of three evil paths: killing, harsh speech, and hatred. Why do you kill? Because of anger. Why do you speak hurtfully? Because of anger. Why do you harbor resentment without end? Because of anger. - Greed (lobha) is the true instigator of three evil paths: stealing, sexual misconduct, and greed. Why do you steal? Because you want. Why do you cross boundaries? Because you want. Why do you cling without cease? Because you want. - Wrong view (mithyā-dṛṣṭi) culminates through ignorance (moha/avidyā)—denying cause and effect, denying good and evil, denying past and future lives: behind this misapprehension lies fundamental ignorance. - The remaining bodily and verbal actions (false speech, divisive speech, idle chatter, etc.) culminate through all three poisons collectively—verbal deception may be mixed with greed (to gain advantage), hatred (to injure), or ignorance (to cover up); one must look to the specific situation to see which root runs deepest.
This verse reveals a profound observation: everything you do externally, when traced inward, will eventually encounter these three seeds.
IV. The Three Mental Karma-Pathas—Precise Delimitation
The treatise master then draws the boundaries of the three mental karma-patha with another verse:
「惡欲他財貪，憎有情瞋恚，撥善惡等見，名邪見業道。」
*"Evil desire for another's wealth is greed; aversion toward sentient beings is hatred; the view that rejects good and evil and the rest is called the wrong-view karma-patha."*
Three definitions admit no ambiguity:
- The greed karma-patha: "evil desire for another's wealth"—an unreasonable craving for the property of another person. Note the two qualifications: it is "another's" and "unreasonable." Wanting something for yourself that you lack and striving for it with effort—that is right livelihood. A measured desire is not what is meant here by the greed karma-patha. Only when you fix your gaze on what is in someone else's hands, and that desire itself is unreasonable—whether or not you act on it—does its mere arising constitute the fundamental karma-patha. - The hatred karma-patha: "aversion toward sentient beings"—the intention to harm a sentient being (a living creature). Note: hating a system (an institution, an ideology), hating an abstract matter, hating your own fate—none of these yet counts as hatred at this level. The hatred karma-patha must involve emotion toward a sentient being, and the intent to harm them. - The wrong-view karma-patha: "rejecting good and evil, etc."—actively rejecting the karmic results of good and evil. This is not merely "having a somewhat off idea." It is denying that good and evil have retribution, that karma is real, that past and future lives exist—the fundamental doctrines. The treatise master's word is "撥" (bō, actively reject/deny), which means it involves an active, deliberate act of negation—not a muddled ignorance.
V. The Moment a Thought Arises, It Is Already "Fundamental"
Karma-patha has three phases: "preparatory (prayoga)—fundamental (maula)—subsequent (pṛṣṭha)." For example, in the case of killing: first you prepare the weapon (preparatory), then you deliver the fatal blow (fundamental), then you dispose of the body and cover your tracks (subsequent). All seven bodily and verbal evil paths have these three phases.
The three mental evil courses have no such distinction. The treatise master states it bluntly: "Greed, hatred, and wrong view—the moment they appear before the mind, they are already called the fundamental karma-patha; hence there is no distinction of preparatory or subsequent phases." The moment the thought arises, it is already complete—there is no such thing as "I thought about it for a long time but haven't actually done anything yet." Thinking is doing. This is the most distinctive—and most uncomfortable—quality of the three mental evil courses.
VI. The Three Mental Evil Courses Also "Parasitize" Within Body and Speech
The three mental evil courses do not exist only independently; they also "grow" bodily and verbal evil actions. The treatise master gives us a clear classification table:
- Bodily and verbal karma born of greed—set apart under the name wrong livelihood (mithyā-ājīva). Means of livelihood rooted in greed (such as fraud, smuggling, trafficking in things that violate national law), even if they look outwardly like mere "professional conduct," have greed as their root, so they receive a separate name. - Verbal karma born of hatred or ignorance—called wrong speech (mithyā-vāc). Words spoken with anger or confused judgment fall here. - Bodily karma born of hatred or ignorance—called wrong action (mithyā-karmānta). Same as above, with hatred or ignorance as the root.
There is also a group of three: "crooked, filthy, turbid" (kuhana, mala, kaṣāya): flattery gives rise to crookedness (flattery is distortion), hatred gives rise to filth (anger is pollution), greed gives rise to turbidity (covetousness is murkiness)—each of the three encompasses bodily, verbal, and mental karma. The "greed gives rise to turbidity" here is often one source of the "greed-turbidity" in the "five turbidities of the evil world" (pañca-kaṣāya, 五濁惡世) familiar to the general public—the greed within the three mental evil courses is precisely the seed that constitutes the murkiness of the entire world.
VII. The Fundamental Distinction from Bodily and Verbal Evil Courses
To summarize the unique features of the three mental evil courses:
| Feature | Bodily and Verbal Evil Courses | Three Mental Evil Courses | |---|---|---| | Substance | Bodily and verbal manifestation (bodily movement, vocal sound) | Afflictions (greed, hatred, wrong view) | | Relation to "intention" | Set in motion by intention | Intention turns with them as its gate, but they "have separate substance apart from intention" | | Karma-patha phases | Have preparatory, fundamental, subsequent phases | Fundamental phase only—the moment of arising is already a karma-patha | | Independent existence | Require bodily or verbal action to constitute | Complete in a single thought; no overt behavior needed | | Intentional name | They are themselves bodily and verbal karma | Also called "mental karma" in the sūtras, but in fact they are afflictions |
A Walk-Through in Daily Life
Let's walk this map. Pick a few situations familiar to contemporary people.
Scenario One: The Commute
On the subway you scroll and see that a colleague was promoted last year and bought a new apartment. A thought arises: "How lucky that fortune fell on her. I want that kind of house too."
Walk through the definition: the core requirement of the greed karma-patha is "unreasonable desire for another's property." Another person (her), property (the house and the opportunity), unreasonable desire (feeling that your own fate ought to be arranged the way someone else's was). The thought arises—it is immediately the fundamental phase.
Note: this is where we most easily mis-map. Many people, hearing "greed," immediately think of outward manifestations like "craving money." But here greed is the establishment of an inner possessiveness—it has nothing to do with whether you take action. Even if you go home and continue your ordinary life, taking no action at all, this thought itself, according to the Vaibhāṣika masters, already constitutes a mental karma-patha.
Scenario Two: Office Conflict
A team member delays the schedule, causing you to be scolded in front of the boss. Inside you think: "I hope her project crashes and burns this month, so she gets a taste of suffering too."
This is the hatred karma-patha: "aversion toward sentient beings"—you wish her harm. The victim is a "sentient being," so the condition is met.
Don't mis-map: many people think, "I never actually raised my voice at her, never set up a trap against her, so I'm fine"—but the hatred karma-patha here does not care what you do. It cares only whether that "may she suffer" has taken a firm stand in your mind. The moment it arises, it is the fundamental phase.
At the same time, note: hating yourself ("I'm so useless"), hating fate ("so unlucky"), hating some abstract system—this is hatred (dveṣa), but it is not yet hatred at the level of a mental karma-patha (because the object is not a sentient being). It is still an affliction, still classified as unwholesome mental karma. But it is not until it reaches the point of intending harm toward a specific person that it satisfies the strict definition of a "mental karma-patha."
Scenario Three: Those "Awakening" Moments While Scrolling Short Videos
You watch a speech arguing that "belief in karmic retribution is superstition; only hard work matters," and you feel gratified: "Right—there's no such thing as karmic fruits. Just go all out yourself."
This is the wrong-view karma-patha: "rejecting good and evil, etc."—actively rejecting (撥) the karmic fruits of good and evil (refusing to acknowledge that there is a mechanism of retribution for cause and effect). The thought arises—it is immediately the fundamental phase.
Here are the three places the general public most commonly misunderstands: 1. It does not mean you "haven't thought carefully enough" or "your logic isn't rigorous"; 2. It does not mean you "temporarily don't know the facts of karma"; 3. It means you actively and deliberately deny the fundamental structure that good and evil bring retribution.
Skepticism, unclearness, never having thought about it—wrong view has varying degrees. But the moment it becomes a position you actively prop up, the mental karma-patha is complete.
Scenario Four: Those Quiet Motives of "I Didn't Mean It That Way"
Suppose you did a good deed—donated a considerable sum. But in the quiet of the night, you know that behind that action there was a small voice: "This makes me look virtuous; they'll remember my kindness."
That small voice is the arising of greed. Why mention this scenario? Because it reveals an important fact: the three mental evil courses do not appear only in evil deeds—they can infiltrate good deeds. Conditional giving (for reputation, for profit, for return) is the classic case.
Likewise, "righteous speech" tinged with hatred, "religious practice" tinged with wrong view (such as keeping precepts in order to send others to hell)—structurally these are all the same: when the foundation moves, everything on the surface tilts.
Scenario Five: Parenting Moments
Your child is bullied at school and comes home crying. Your first surge of feeling is: "Tomorrow I'm going to find that kid's parents and settle this"—but then, rationally, you think: "No, I need to stay calm." Rationally you want to be calm, but the fire inside is still burning.
This perfectly illustrates a practical subdivision between the mental evil courses and the mental karma-patha: hatred as an affliction exists universally, but the precise condition of the karma-patha—"the intention to harm a sentient being"—varies in degree according to whether the thought is a "fleeting flash," a "tacit endorsement," or a "deeply rooted commitment."
The treatise master's standard answer is: the moment it arises, it is the fundamental phase—this arising is not divided into "major arising" and "minor arising." The existence or non-existence of a karma-patha is not determined by degree, but only by whether the thought "may he suffer" has genuinely surfaced.
One Place Most Often Mis-Mapped
The general public most easily understands "the three mental evil courses" as a whole to mean "psychological states," and then goes further to understand "psychological states" as "the anxiety, attachment, and stubbornness ordinary people have." But the treatise master designed the three mental evil courses with far greater precision than this:
- Intention (思, cetanā, volitional construction)—this is mental karma, the substance of "karma" in the strict sense; - Greed, hatred, wrong view—these are afflictions, turning with intention as their gate; - Constituting a mental karma-patha—requires that those three afflictions "appear before the mind" in the way defined in this chapter.
Conflating these three layers leads either to thinking "the three mental evil courses" means "any unwholesome thought in my mind is a great transgression," or to thinking "it's just a passing emotion—if I didn't do anything, it doesn't count." Both are wrong.
Why Contemporary People Need It
The first reason is the most plain: its definition contains a liberating insight about human beings—mental activity is not merely "feeling" but has structure. The ability to recognize the context of those three seeds in the moment—whether you are fixated on what belongs to another, whether you want a sentient being to suffer, whether you are actively denying cause and effect—this discernment is what contemporary people need most, and what the fewest people are specifically trained in.
Modern people understand "emotional management" as "suppress it, pretend it's fine" or "once you know it, you let it go." But the first step of emotional management is far closer to this analysis of the three mental evil courses: the three poison seeds in your mind—possessiveness, hostility, negation—are triggered by what situations, attached to what objects, and whether they have truly taken shape as a karma-patha. This is a form of introspection of extremely high precision.
The second reason: it reveals the causes behind all our external "I don't even know why it turned out this way" experiences.
Behind killing is hatred; behind stealing is greed; behind false speech can be any of the three poisons—this map makes experiences like "why does it keep happening again" no longer alien to us. If you notice yourself repeatedly committing the same kind of bodily or verbal fault over a certain period, the framework of the three mental evil courses directly guides you: go back and see which seed is silently commanding right there.
The third reason: it is the minimum wage of mental cleanliness. You may not keep precepts, may not become a monastic, may not master deep meditative absorption—but as long as you can recognize whether these three things are operating in the present moment, you are already walking on the right path. This is a tool Buddhism gives to every person, regardless of religion, that anyone can use.
The fourth reason, and the one the general public least often thinks of: it can explain "why I understand all the principles but can't act on them." Because what is in charge is not the principle—it is the seed within the three mental evil courses. You have listened to a hundred talks and understood causality, but as long as wrong view is still standing, that understanding cannot support the next step. This is why the ancients emphasized "sever the delusions (斷惑) before cultivation (修行)"—not to deny the necessity of cultivation, but to say that those three seeds must first be genuinely recognized and set down before the "practice" that follows can stand firm.
Contemporary psychology speaks of "mindfulness," neuroscience speaks of the "default mode network," and the algorithmic age talks endlessly about the "attention economy"—all of these point to a common fact: the human mind repeatedly falls into certain automated unconscious patterns. Buddhism very early (in the era of the *Kośa*) gathered these automated patterns into three categories and precisely determined their substance, boundaries, and modes of operation.
But a reminder is necessary: using contemporary experience as analogy is to make the concept tangible—not to claim that science has "proven" specific Buddhist conclusions. Brain imaging can observe neural activity related to "greed, hatred, ignorance," but questions such as "is that an affliction or karma," "does it have karma-patha significance"—science has no answer to these. And the nature of the question is such that it cannot be fully answered empirically; it must be settled by direct personal realization.
Common Misreadings and Clarifications
Misreading One: "The three mental evil courses are just the unpleasant thoughts in my mind"
Wrong. The three mental evil courses have precise membership—only three: greed, hatred, wrong view. Ordinary anxiety, hesitation, jealousy (jealousy is subsumed under greed), sorrow, fear, shame, guilt—these are not necessarily directly the three mental evil courses; some of them are derivative afflictions that arise from them.
More precisely: jealousy (īrṣyā), miserliness (mātsarya), flattery (māyā), deception (śāṭhya), and the extensions of deception are derivatives of greed; enmity (upanāha), malice (pradāśa), harmfulness (vihiṃsā), jealousy (also a form of hatred) are derivatives of hatred; wrong view itself has as many as sixty-two views, but its core trait is "rejecting good and evil, etc." Ordinary "being displeased" does not necessarily involve intending harm to someone, nor does it necessarily deny cause and effect—so it is not yet at this level.
Misreading Two: "The three mental evil courses mean 'the stirring of thought,' so any thought that moves is already committing karma"
This is the opposite error—excessive intimidation. "Thoughts" are vast and boundless, but the three mental evil courses have their shapes: greed must be an unreasonable desire for another's property; hatred must be the intention to harm a sentient being; wrong view must be the active, deliberate denial of karmic fruits of good and evil. A minor annoyance about the weather, a professional hesitation or bias, a passing thought that "the world might be unfair"—all of these still must be checked against whether they satisfy the precise conditions above.
And remember: affliction-nature (non-karma) and karma-nature (intention) are two layers. A mental affliction floating up is one thing; whether it activates "intention" to construct action is another.
Misreading Three: "The three mental evil courses are evil deeds directed at others, so they have nothing to do with me"
Quite the opposite. For most people, the first victim of the three mental evil courses is oneself. Greed traps a person in endless comparison and discontent; hatred causes chronic inflammation and lost sleep; wrong view accumulates karmic consequences. Even from the perspective of worldly well-being, the long-term cost of these three seeds is staggeringly high.
Misreading Four: "The three mental evil courses and the bodily and verbal evil courses are three separate things"
No. The three are structurally distinct, but intertwined when they occur. The moment a mental karma-patha arises, it often immediately activates the preparatory phases of bodily and verbal action; the three mental evil courses are also the true culminators of the bodily and verbal evil courses. The actual shape of practice is to work on all three levels simultaneously—body and speech have their standards (śīla, precepts), the mind has its focus and discernment (samādhi and prajñā)—and the three support one another.
Misreading Five: "Since it's only thoughts, just train to suppress them"
Merely "suppressing" is the wrong strategy. The reason is simple: the treatise master has already emphasized "the moment it arises, it is the fundamental phase." That is to say, once the thought has arisen, "pressing it back" is already too late—the karma-patha has already been established. What can be done is not suppression afterward, but recognition beforehand: before those three seeds arise, discern the situation that triggers them, recognize the faint unwholesome tendency in the present, recognize the very moment when "may he suffer" first sprouts.
This capacity for "recognizing"—called by the ancients "awareness," "contemplative illumination," "clear knowing"—is the true point of leverage for cutting off the three evil courses.
Misreading Six: "Only people who do bad things have the three mental evil courses"
No. These are the arising of every ordinary person who has not yet severed the afflictions. An ordinary person is carried along by them countless times in a single day, and most do not have very dramatic consequences—but by the definition of karma-patha, every "appearing before the mind" that satisfies the conditions constitutes a fundamental karma-patha. So the three good courses (non-greed, non-hatred, right view) are not some unattainable lofty state, but something practiced repeatedly in the most subtle places every day.
Misreading Seven: "Wrong view just means any erroneous idea"
Wrong. Wrong view has specific content—its core is rejecting cause and effect, rejecting good and evil. Beyond this, things like "an erroneous political stance," "a value system outside the mainstream," "an eccentric cosmology" are not wrong-view karma-patha. It must arise in the specific act of negating the fundamental law of karmic retribution.
One final clarification: since the three mental evil courses belong to "non-karma," why does the treatise master not simply call them afflictions? Because the three evil courses are spoken with reference to construction (carita)—construction is "courses"; the three evil courses specifically point out the three things that truly command the mind while those "courses" are taking place. So calling it an "evil course" is looking at its function; saying it is non-karma is looking at its substance; calling it a mental karma-patha is looking at the mechanism by which it can become karma. These three layers are seen separately, but they refer to the same thing.
If there is anything we can take directly from this concept today—not a set of terms to memorize, but a working method: when you encounter a recurring painful scenario in yourself, a certain involuntary continuity, an inner tendency you cannot explain, return to those three frames to recognize it—is it possessiveness, hostility, or a fundamental misapprehension? The moment you recognize it, right view stands up. This may be the contemporary meaning of the word "turn over" (翻) in "the three good courses turn this over" (三妙行翻此)—not an abstract opposition, but an everyday, repeatable, operational reversal.