1. What This Concept Is About
"一切空" (sarva-śūnyatā) is one of the "sixteen emptinesses" taught in the *Mahāprajñāpāramitā Sūtra* (Xuanzang's translation), and a core element of the emptiness realized by prajñāpāramitā. These four characters appear simple, yet they touch the ultimate point of prajñā wisdom — not the emptiness of some dharmas, but the emptiness of "all" dharmas; not the annulment of phenomena, but the contemplation of "absence of self-nature" (niḥsvabhāvatā).
1.1 The Classical Definition: The Emptiness That Contemplates All Dharmas as Devoid of Self-Nature
Two layers need to be unpacked:
First layer: The scope of "all dharmas"
The word "all" (sarva) is not a vague generalization but has a precise referent. In the context of the prajñāpāramitā sūtras, "all dharmas" covers the entirety of conditioned phenomena (saṃskṛta-dharma) and unconditioned phenomena (asaṃskṛta-dharma), defiled dharmas and pure dharmas, worldly dharmas and supramundane dharmas — specifically including the five aggregates (pañcaskandha: form, feeling, perception, formations, consciousness), the twelve sense bases (āyatana: eye, ear, nose, tongue, body, mind, and form, sound, smell, taste, touch, mental objects), the eighteen elements (dhātu: the above plus the six consciousnesses), the twelve links of dependent origination (pratītyasamutpāda: from ignorance as condition for formations up to aging-and-death), the four noble truths (duḥkha, samudaya, nirodha, mārga), and even the bodhisattva's six pāramitās and myriad practices, up to buddhahood and nirvāṇa. This is comprehensive coverage from ordinary sentient experience all the way to the ultimate state of liberation — no dharma is excluded.
The emphasis on "all" exists because the wisdom of the Dharma must be thoroughgoing; it cannot empty only half and leave a remainder. If one only says "form is empty," "feeling is empty," but "the Buddha is not empty" and "nirvāṇa is not empty," then attachment remains, and the contemplation of prajñā cannot be perfected.
Second layer: The meaning of "absence of self-nature"
"無自性" (niḥsvabhāvatā, "absence of self-nature"; Skt. *svabhāva-śūnya*) is the key to this concept and also the most easily misread point. "Self-nature" (svabhāva) refers to an inherent nature that is permanent, unitary, sovereign, self-existent, and independent of causes and conditions. To contemplate all dharmas as devoid of self-nature means:
- Form dharmas are not permanent and unitary: the body ages, cells are constantly being replaced, and there is no "unchanging entity" that can be called "I" or "my body"; - Mental dharmas are not sovereign: thoughts arise and fall one after another, emotions cannot be fully controlled, and there is no "eternal self" directing from behind; - Phenomena are not independent: everything arises from the conjunction of causes and conditions — mountains, rivers, plants, human affairs, and encounters all arise dependent on conditions and change with them; no dharma exists in isolation, independent of mutual dependence with other things.
A subtle boundary must be carefully noted here: absence of self-nature does not mean nothing at all. Phenomena still appear illusorily and manifest as they do, but there is no permanent, unchanging "self-nature" propping them up. This is precisely what the *Heart Sūtra* (Prajñāpāramitāhṛdaya) means by "照见五蕴皆空，度一切苦厄" — "*contemplating and seeing that the five aggregates are empty, crossing beyond all suffering and distress*." The manifestation of the five aggregates is never denied; what is seen through is the attachment to that "permanent, unitary, unchanging self."
1.2 Its Place on the Path to Liberation
"一切空" is not an isolated term; it is the object of contemplation (ālambana) of correct prajñā view. The purpose of cultivating this contemplation is to enable the bodhisattva — and all practitioners who have aroused the aspiration — to develop no attachment toward any dharma, to dwell in no deluded conceptualization, and thereby to accomplish anuttarā-samyak-saṃbodhi.
Why can contemplating all dharmas as devoid of self-nature become the key to liberation? Because the root of attachment is the "view of self-nature" (svabhāva-dṛṣṭi) — the belief that "I" is real, permanent, and sovereign; the belief that "everything I possess" is fixed, unchanging, and controllable. Once this view of self-nature is seen through, the root of suffering — craving, aversion, and delusion — loses its foothold. This is not a logical deduction but a transformation that occurs when the power of contemplation directly penetrates reality.
1.3 Distinctions from Related Concepts
Within the system of prajñā emptiness, several "emptinesses" are easily confused. A brief clarification:
- 空 (śūnyatā, emptiness) vs. 空空 (śūnyatā-śūnyatā, the emptiness of emptiness): Contemplating all dharmas as empty is the破除 of attachment to dharmas; 空空 goes further — it does not attach even to the concept of "emptiness" itself, lest one fall into a new attachment of taking "emptiness" as something real. The two operate at different levels. - 空 vs. 無 (non-existence): Emptiness is not a synonym for non-existence. "Non-existence" negates the existence of phenomena; "emptiness" sees through the attachment to self-nature but does not deny the manifestation of phenomena. The moon in water is empty, yet the reflection of the moon is still visible. - 一切空 vs. 自性空 (svabhāva-śūnyatā, emptiness of self-nature): 自性空 (also called 本性空, emptiness of intrinsic nature) emphasizes observation from the perspective of a dharma's own essence; 一切空 emphasizes the scope of the contemplated object — not the emptiness of individual dharmas, but the emptiness of all dharmas. The two angles differ slightly, but what they point to is complementary.
2. Walking Through It in Everyday Life
The contemplation of prajñā emptiness is only useful when it lands in the real experience of each present moment. Let us walk through several scenarios familiar to contemporary people:
Scenario One: The "Sense of Self" on the Commute
You are squeezed into the subway car during morning rush hour, jostled by the crowd, and a chain of thoughts may arise in your mind: *this project is my responsibility*, *this month's KPI is mine to complete*, *I must arrive on time today*. Behind these thoughts is a tightly gripped "I" — assuming "I" is fixed, "my work" is fixed, "my goals" are indubitable.
Contemplate with all-emptiness: Does this work grasped by "self-attachment" really have "self-nature"? Three months from now you may have changed projects; three years from now you may have changed industries; the KPI that causes anxiety today may be completely unremembered next year. "I" is a continuous flow of causes and conditions, not a congealed core. This is what it means to contemplate all dharmas as devoid of self-nature — the work still needs to be done, but you are no longer held hostage by the illusion of "I."
Scenario Two: "Evaluation Anxiety" While Scrolling Your Phone
You carefully edit a post, publish it, and then repeatedly refresh to check the likes. Every like, every comment seems to vote on "who you are." If the numbers look bad, you feel deflated; if the numbers explode, you feel elated. But either reaction assumes the same thing: *there is a fixed "I" that needs to be confirmed in its value by external evaluation.*
Contemplate with all-emptiness: That post is a product of causes and conditions (your mood, the current trend, the algorithm's recommendation, your friends' availability), and "you" are not an object that can be defined by a like count. When you can pull yourself slightly out of the fog of this view of self-nature, scrolling your phone no longer becomes an emotional rollercoaster. This does not mean you cannot care about others' evaluations; it means you no longer treat evaluation as proof of a "self with real self-nature."
Scenario Three: "The Other Person Is Mine" in Intimate Relationships
In a long-term relationship, we often default to expecting the other person to be a certain way: *TA should understand me, TA should support me, TA should respond to me in the way I expect.* Behind this "should" is a solidified image of "the other" — assuming the other has a kind of "self-nature" that is stable, predictable, and controllable by me.
But every real other person is the present manifestation of countless causes and conditions. TA is the totality of TA's past experiences, TA's current state of mind, TA's bodily condition, and all the information TA is receiving at this moment, all co-arising to manifest as what TA is. TA has no fixed, unchanging "self-nature" waiting for you to correspond to it. When you stop treating the other person as a congealed object and instead see an alive, constantly changing stream of causes and conditions, many painful expectations naturally loosen.
Scenario Four: "My Child" in Parenting
Parents' expectations of their children often harbor a hidden illusion: *This child is my creation and should grow along the trajectory I have designed.* But the child, as an independent stream of causes and conditions, has TA's own talents, interests, karma, and generational environment. Contemplate with all-emptiness: there is no fixed possession called "my child," and no truly existing "future that I have designed." This does not mean giving up guidance; it means loosening from the attachment to the identity of "sovereign controller" and becoming a supportive condition on TA's life path rather than a controller.
The place where this walk-through is most easily distorted: equating "absence of self-nature" with "no need to take responsibility." This is a common slippage. To contemplate all dharmas as empty is to see through attachment, not to abandon action. Work still must be done, children still must be raised, relationships still must be maintained — only, none of this is any longer the slave of "self-attachment," but rather the skillful means of wisdom.
3. Why Contemporary People Need It
The spiritual predicaments of contemporary people share a common feature: being trapped by the boundaries of the "self." This "self" is amplified without limit, becoming a breeding ground for anxiety, comparison, loneliness, and exhaustion. Specifically:
3.1 Alleviating Existential Anxiety
Existential psychology has described this clearly: when a person treats "I" as a fixed entity, they endlessly ask "Who am I?" "Do I have value?" "Will I still exist after death?" These questions find no ultimate answer, because the premise itself needs to be examined — the "fixed entity I" may never have been substantially real to begin with. 一切空 offers a way out: not by providing an answer, but by seeing the illusoriness of the question itself, allowing anxiety to find its resting place.
3.2 Responding to Information Overload and Cognitive Rigidity
The algorithmic age has a distinctive feature: it analyzes your "self-nature preferences" and continuously feeds you similar content, making your cognitive framework increasingly rigid. You think you are thinking freely, but you are actually trapped in a reinforced model of "self." The contemplation of all-emptiness offers the possibility of "loosening" — pulling yourself slightly out of solidified cognition and seeing that "all of this" is also brought forth by causes and conditions, and need not be clung to.
3.3 Maintaining Balance Amid Rapid Change
The pace of change in contemporary society far exceeds that of any earlier era. Jobs may disappear, industries may be reshaped, the forms of intimate relationships are constantly being renewed. "Control" becomes increasingly unrealistic. The wisdom of all-emptiness allows a person to maintain a certain lightness amid change — not giving up effort, but knowing that while striving, one need not be held hostage by results; knowing that things have no self-nature by nature, and change is the norm, thereby reducing unnecessary resistance and suffering.
3.4 Deepening the Foundation of Compassion
Why does contemplating all dharmas as empty give rise to vast and profound compassion? Because when you see a colleague "anxiously pursuing recognition," you do not see a "bad person" but a suffering being driven by ignorance, equally devoid of self-nature. This vision allows compassion not to degenerate into sentimental sympathy, but to become a profound understanding.
4. Common Misreadings and Clarifications
Misreading One: Emptiness Means Nothing at All
This is the most common annihilistic misunderstanding of emptiness. To think that the Buddha's teaching of all-emptiness means "nothing exists" and "when a person dies, it is like a lamp going out" is precisely to violate the intent of 一切空. Absence of self-nature sees through the permanent, unitary, sovereign "self-nature," but does not deny the manifestation of dependent-originated phenomena. Just as the scenes in a dream lack substantial reality, yet mountains, rivers, people, joys, and sorrows still appear within the dream. 一切空 does not ask you to flee the world; it asks you to be in the world without being turned by the world.
Misreading Two: Emptiness Is Nihilism or a Passive Attitude
Reading "absence of self-nature" as "nothing matters" and "nothing needs to be taken seriously" is to misread prajñā wisdom as cynicism. The contemplation of all-emptiness is positive — it allows you to give sincerely without clinging to return, to live earnestly without being trapped by outcomes. This is the courageous diligence of the Mahāyāna bodhisattva, not lying flat and giving up.
Misreading Three: Absence of Self-Nature Equals Denial of Phenomena
Some may object: if everything lacks self-nature, then does the table not exist? Do I not exist? This is to understand "absence of self-nature" as "non-existence." But the Middle Way of the Dharma is: phenomena manifest in the mode of dependent origination, yet cannot be grasped as having fixed self-nature. The table remains as a phenomenon arising from causes and conditions, but no permanent "table" entity can be pointed to. This is somewhat like science having discovered that "matter exists as relationships" — when the relationships change, matter's "self-nature" also changes, and this shares a certain resonance with the wisdom of absence of self-nature (but it cannot be claimed that science has proven the Dharma, for the two have different contexts, methods, and aims; this is offered only as a stimulus for thought).
Misreading Four: Turning "一切空" into a Mantra Rather Than Actual Practice
If a person speaks of "all is empty" but is extremely attached to money, status, and approval, and erupts in fury at the slightest provocation from another, then "一切空" has become a slogan — even a form of self-deception. Genuine contemplation of all dharmas as devoid of self-nature necessarily brings about a transformation of mind — not coldness, but clarity; not abandonment, but ease. This contemplation requires actual cultivation to be even slightly entered into; it cannot be fully received through mere intellectual understanding alone.
Misreading Five: Confusing 一切空 with 惡取空 (durgṛhītā śūnyatā, wrongly grasped emptiness)
The *Mahāprajñāpāramitā Sūtra* repeatedly distinguishes "true emptiness" (真空) from "wrongly grasped emptiness" (惡取空). True emptiness is correctly understanding absence of self-nature without falling into annihilist views; wrongly grasped emptiness is clinging to the mark of emptiness, holding that there is no cause and effect, no good and evil, and no need for cultivation. 一切空 is true emptiness, not wrongly grasped emptiness. One who cultivates all-emptiness still deeply believes in cause and effect, still diligently cultivates, still respects the value of all wholesome and unwholesome dharmas — only, none of this is grasped as having real self-nature.
Conclusion: 一切空 as the Wisdom of Living
The *Heart Sūtra* says "照见五蕴皆空，度一切苦厄" — "*contemplating and seeing that the five aggregates are empty, crossing beyond all suffering and distress*." This single line encapsulates the core position of prajñā emptiness on the path to liberation. 一切空 is one concrete locus of this wisdom: contemplating all dharmas as devoid of self-nature. When this contemplation penetrates deeply into one's life, you will no longer be trapped by a solidified "I," no longer crushed by shifting external circumstances, no longer swallowed by rising and falling emotions.
This does not mean becoming a person without positions, without passion, without deep feeling. It means maintaining a clarity within all positions, passions, and deep feelings — knowing that all of this is the present manifestation of causes and conditions; there is no need to generate attachment to "real self-nature" toward it, and no need to generate endless sorrow and worry over its changes.
This is the place of 一切空 in contemporary life: not passive escape, but active freedom.