There is a word in Yogācāra (唯識 / "consciousness-only") philosophy that looks like a slogan: *wúxīn dì* — "mindless ground." You have probably heard "no-mind" (無心) in Chan/Zen contexts as a positive spiritual attainment. The Yogācārabhūmi-śāstra (《瑜伽師地論》, T1579), the vast compendium that systematized this whole vocabulary, uses the same two characters — but as a tightly-bordered technical classification. This matters: if we confuse the two, we will mistake a person in coma for an arhat, or mistake a sleep-hazed meditation for a realized state. The treatise, knowing exactly that risk, lays out *five* different ways of deciding what counts as a "mindless" state and adds a sixth warning about states that only *look* mindless. Let's walk through them.
1. What This Concept Is Saying
1.1 The one-line definition, and why it is plural
*Acittaka-bhūmi* — "the ground where mind and mental factors are not functioning" — is one of the seventeen grounds (十七地 *daśa-saptati-bhūmi*) in the treatise. It is set against *sacittaka-bhūmi* (有心地, "the ground with mind"). The important move right at the start: the treatise does not give one definition. It gives five *differentiation principles* (施設 *sthāpanā*, lit. "establishments") and says: depending on which lens you look through, the answer to "is this state with mind or without mind?" can differ. A person sitting cross-legged with eyes closed may be "with mind" by one criterion and "without mind" by another.
The five lenses are: 1. 地施設建立 — establishment by ground 2. 心亂不亂建立 — establishment by mental disorder or non-disorder 3. 生不生建立 — establishment by arising or not-arising 4. 分位建立 — establishment by position/stage 5. 第一義建立 — establishment by ultimate meaning
These five are not redundant. They tell you *different* things about *different* states, and the most penetrating insight of the whole entry is that only one of these lenses gives you the "real" answer, and that answer involves a specific technical term — *ālaya-vijñāna* (阿賴耶識, "storehouse consciousness").
1.2 Lens One: 地施設 — "By Which of the Seventeen Grounds You Are In"
The seventeen grounds (十七地) are the treatise's own classification of states of existence and stages of practice. Five of them are, by definition, "with mind" — the five sense-cognition ground (五識身相應地), the mind ground (意地), the ground with vitarka and vicāra (有尋有伺地, the *initial and sustained thought* levels), and the ground with only vicāra (無尋唯伺地). All of these are active cognition — there is always a mind and mental factors (心心所, *citta-caitta*) functioning.
Then comes the ground without either vitarka or vicāra (無尋無伺地 — the subtler meditative absorptions). Within this subtlest ground, *most* states still involve mind. Only three are explicitly carved out as "mindless" (無心) within this category: 無想定 (asaññā-samāpatti, "the formless attainment"), 無想生 (asaññā-upapatti, "formless birth"), and 滅盡定 (nirodha-samāpatti, "the cessation attainment"). The rest of the no-vitarka-no-vicāra ground, even though it is far subtler than our waking thought, still counts as "with mind."
Notice the precision: even in states much subtler than ordinary awareness, the treatise refuses to call them "mindless" by default. "Mindless" is the exception, and only certain exceptions.
1.3 Lens Two: 心亂不亂 — "By Whether the Mind Is Disordered"
This is the door where "無心人" (the "mindless person") enters everyday language. A person so overwhelmed by the four inversions (四顛倒 — the four fundamental cognitive distortions that take impermanence as permanent, suffering as pleasure, the selfless as self, and the impure as pure) that their mind-nature is "damaged" (失壞) is called 亂心 — "disordered mind" — and may colloquially be called *wúxīn rén*. The treatise explicitly notes that the world calls such a person "mindless," the way we say someone "isn't in their right mind."
But the treatise immediately clarifies: this does not mean mind has ceased to arise. The mind is functioning, just functioning upside-down. This is the most semantically loose of the five criteria and the easiest to misread. It uses "no-mind" the way English uses "absent-minded" or "out of one's mind" — a state of presence gone wrong, not a state of pure cessation.
1.4 Lens Three: 生不生 — "By Whether Mind Actually Arises"
Here we move into something almost causal. Mind-and-mental-factors (心心所) arise only when conditions are sufficient. The treatise lists eight conditions that prevent mind from arising:
1. 根破壞 — the sense-faculty is destroyed (e.g., a destroyed eye means no visual consciousness can arise) 2. 境不現前 — the object is not present (no sound → no ear-consciousness) 3. 闕作意 — intentional engagement (manasikāra, 作意) is missing (the mind is not attending) 4. 未得 — not yet attained (lacking the capacity — e.g., an infant's undeveloped cognition) 5. 相違 — conflicting conditions (a stronger state suppressing a weaker one) 6. 已斷 — cut off (the defilements that would trigger it have been cut) 7. 已滅 — already destroyed 8. 已生 — already arisen past, no longer present
Where the converse conditions are present, mind arises — that is 有心地. Where they are absent, mind does not arise — that is 無心地. This is the most "mechanical" of the five lenses, almost a checklist. It does not matter if the person is in a subtle meditation or under anesthetic — if the conditions for any consciousness to arise are not present, you have an instance of 無心地 by this criterion.
1.5 Lens Four: 分位 — "By Position / Stage"
This is where the treatise gets specific. It enumerates six positions (分位) that are called "mindless":
1. 無心睡眠位 — "the position of mindless sleep." Ordinary deep sleep, where 心心所 are not functioning. 2. 無心悕絕位 — "the position of mindless faint." Coma, fainting, shock-induced unconsciousness. 3. 無想定 — "the formless attainment," a specific meditative absorption in which mind and mental factors are deliberately quieted. 4. 無想生 — "formless birth," i.e., being born into the formless realm where that quieting continues for a long stretch (the treatise elsewhere specifies 500 or 1000 eons depending on the sub-realm). 5. 滅盡定 — "the cessation attainment," nirodha-samāpatti, in which even feeling (受) and perception (想) cease, alongside all six classes of consciousness. 6. 無餘依涅槃界 — "the nirvāṇa-without-remainder ground," the state after the death of an arhat, where no further rebirth occurs.
Excluding these six, everything else is "with mind."
This is the list most people who learn the term will remember. But it is not the bottom line — that comes next.
1.6 Lens Five: 第一義 — "By Ultimate Meaning"
Now the treatise pulls the rug out from under the first four lenses. Of the six positions above, only one is *truly* 無心地 in the ultimate sense (第一義, *paramārtha*): the 無餘依涅槃界 — nirvāṇa without remainder.
Why? Because of a technical distinction unique to Yogācāra: between *ālaya-vijñāna* (阿賴耶識, the deepest "storehouse consciousness" that continues from life to life, carrying seeds of karma) and the 轉識 (transforming consciousnesses) — the other seven consciousnesses (eye, ear, nose, tongue, body, manas/afflicted-mind, and the active mental consciousness).
In ordinary sleep, in fainting, in 無想定, in 無想生, in 滅盡定 — what happens is only that the *transforming consciousnesses* temporarily cease. The *ālaya-vijñāna* is still there. The karmic "stream" continues. It is a *temporary* state.
Only in 無餘依涅槃, after the death of an arhat or a Buddha, is the *ālaya-vijñāna itself* permanently extinguished. *That* is real no-mind. The other five are no-mind only in a provisional sense — mind-as-we-normally-experience-it has paused, but the deepest continuity has not.
This is the deepest teaching in the entry, and it is the one most often lost in popular accounts.
1.7 The Two Safeguards: 無想定's "Conceptual-Only" Status, and "Seeming Cessation"
The treatise adds two refinements that protect you from self-deception.
First, about 無想定 (the formless attainment): it is described as "由已離遍淨貪、未離上貪" — attained by one who has abandoned attachment to the Pure Abode (a high form-realm heaven) but has *not yet* abandoned attachment to the highest formless levels. Using the thought of renunciation as a preliminary, they bring all 心心所 to "唯滅靜、唯不轉" — "only quiet, only non-functioning." Crucially, the treatise labels this attainment 假有, 非實物有 — "merely conceptual, not a real existing thing." It is a fabricated state produced by intention; it is not the real cessation that nirvāṇa is. This is a striking demotion. A meditation that *looks* like the real thing turns out, on closer inspection, to be a constructed object of mind, not the thing itself.
Second, about confusing sleepy, effort-free meditation with realization: the treatise warns that 無加行無分別心 (a mind without effort and without differentiation) may *seem* to be extinguished (似滅) and *seem* to have no object (似無所緣), but in reality, mind is not extinguished, and there is still an object (實非心滅, 亦非無緣). It also explicitly rejects the notion that sleep covering the mind is realization — being unable to discriminate during sleep does not count as meditative insight.
The treatise is sharp: *surface stillness is not depth; the quiet of exhaustion is not the quiet of freedom.*
1.8 Where This Sits in the Whole Path
無心地 is not a destination you "achieve" in the devotional sense. It is a *map*. The map tells you where mind is, where mind is paused, and where mind is finally gone. Most states of seeming no-mind (sleep, fainting, anesthetic states, even deep samādhi at the subtler levels) are not the path's terminus. They are *categories of experience* whose classification matters precisely because so many of them look like the goal.
The path-direction implied is: do not mistake a quieter mind for an emptied-out stream. Do not mistake a refined meditative state for the actual extinction of the seed-bearing continuity. Only when the deepest layer itself is cut is it real.
2. Life Walkthrough — Mapping 十八 Classical Criteria Onto Contemporary Scenes
The treatise gives six positions. Let's walk each one through ordinary contemporary life and notice where our intuitions line up — and where they don't.
2.1 無心睡眠位 — Mindless Sleep
You fall asleep on the train, head bobbing. No dream, no body awareness, no thought-stream. By the *分位* criterion, this is one of the six named "mindless" positions. By the *生不生* criterion, several of the eight non-arising conditions are present: sense organs quiescent, objects not actively impinging, 作意 (intentional engagement) suspended. By the *地施設* criterion, sleep is *not* even in the no-vitarka-no-vicāra meditative ground — it is below that, below even samādhi.
Contemporary mis-mapping: People sometimes say "I meditate like I sleep — I just let go." The treatise would say: no, sleep is not a meditative attainment, and dreaming-less sleep is not deeper wisdom. The eight consciousnesses are quieted, but they are quieted by *unconscious forces*, not by trained understanding. The same silence, attained by vastly different means, is not the same silence.
2.2 無心悕絕位 — Mindless Fainting / Coma / Anesthesia
You go under general anesthesia for surgery. The anesthesiologist's drugs suppress arousal systems — in the language of the treatise, 根破壞 (the sense-faculties are functionally destroyed), 作意 is blocked, and 相違 (conflicting conditions) is present. After the operation you cannot remember anything. By all five lenses, this is 無心.
Contemporary mis-mapping: It is tempting to say anesthesia is a kind of "ego death" or a glimpse of 無心. The treatise would say: **the absence of the transforming consciousnesses is *not* the absence of the *ālaya-vijñāna*.** Whatever seeds are being laid down in your body during surgery (medical interventions, body-level trauma, even your pre-anesthesia karma) are still being stored. You are not "off the wheel." You are simply off *current conscious experience of* the wheel.
The same applies to severe dissociative episodes, severe alcohol or benzodiazepine blackouts, and traumatic fugue states. Mind-as-the-treated-person-knows-it is gone; the *deepest continuity* is not.
2.3 無想定 and 無想生 — "Formless Attainment" and "Formless Birth"
These are the most strictly defined and the hardest to find a clean contemporary parallel. They are meditative attainments available only to those who have passed through the form-realm absorptions (色界, *rūpa-dhātu*) and are working in the formless-realm (無色界, *ārūpya-dhātu*). In 無想定 specifically, all 心心所 are quieted; it is treated by the treatise as conceptually constructed (假有), not a real "thing" existing in the world. In 無想生, one is *reborn* into a state where that quieting continues for a long cosmic span.
Contemporary mis-mapping (this one is important): In popular meditation culture, "cessation of thought" is often celebrated as the goal. Some traditions prize the silent, blank, thought-free state as the highest. The treatise's verdict here is severe: a thought-free state produced by intention and held by intention is conceptional, not substantive. It is an object *constructed by* mind, not the *unconstructing of* mind. The deepest teaching requires *ālaya-vijñāna* itself to be cut. A blank mind is not that.
This is not to dismiss all quietude. It is to insist that the *kind* of quietude matters: is it exhausted silence, intended silence, or the silence that comes from cutting off the seed-bearer itself?
2.4 滅盡定 — Cessation Attainment (Nirodha-samāpatti)
This is a state attained by advanced meditators in which even the subtlest forms of cognition are arrested. In Yogācāra vocabulary, all seven transforming consciousnesses are quieted, only *ālaya-vijñāna* continuing. It is entered intentionally and exited intentionally, and the meditator afterward can remember entering and exiting it but not the content of the state itself.
Contemporary mis-mapping: Some neuroscience-of-meditation accounts describe "cessation events" in highly advanced Theravāda practitioners — a few seconds to a few minutes in which the practitioner reports an absolute gap in experience, even while EEG, fMRI, or trained observers note they are upright and apparently conscious by behavioral standards. The Yogācāra framework would say: **the phenomenological absence is real (transforming consciousnesses are quieted), but the continuity of *ālaya-vijñāna* means the practitioner returns to a self-consistent stream with stored seeds intact.** It is a profound attainment, not the final one.
2.5 無餘依涅槃界 — Nirvāṇa Without Remainder
After the death of an arhat, the *ālaya-vijñāna* itself is permanently cut. There is no re-arising, no continuity, no further storing of seeds. By the *第一義* criterion, *this is the only real 無心地.*
Contemporary mis-mapping: In secular spirituality, "ego death" is often used for peak experiences, psychedelic sessions, or therapeutic breakthroughs. The treatise draws a sharp line: *peak experience is not final cessation.* Even after a profound unitive experience, the *ālaya-vijñāna* continues; the seeds continue; the propensity to re-arise continues. What gets named "ego death" in pop-language is, in this technical vocabulary, at most a temporary 無心 by one of the four looser criteria — never the *first-principle* criterion.
2.6 心亂不亂 — The "Mindless" of Disorder (not the same as 2.1–2.5)
The man staggering out of a bar, raging in paranoid confusion, talking to voices no one else hears. The dissociating survivor of acute trauma, eyes glazed, muttering incoherently. The late-stage dementia patient unable to recognize family. The deeply psychotic person convinced their thoughts are being broadcast. In each, mind is *functioning* but *inverted* — driven by the four distortions in their most extreme form. The world calls them "無心人" (mindless). The treatise uses that same word but specifies the criterion: it is *心亂* — mind that is present and functioning but functioning wrongly.
Contemporary mis-mapping: Two confusions are common. First, we say "they have no mind" as if to imply consciousness is gone. It is not — they are conscious; their consciousness is damaged. Second, we sometimes use "mindless" pejoratively for people whose inner life differs from ours. The classical category is careful: *無心* here means *心亂* — disordered, not absent. The fix is not to add mind back; it is to reorient the mind that is already there.
2.7 生不生 — the Eight Conditions, in everyday life
The eight conditions the treatise lists are remarkably easy to map onto modern cognitive science, which is suggestive but not identical (more on that below):
- 根破壞 (organ destroyed): stroke destroying visual cortex; auditory nerve severed. - 境不現前 (object not present): sitting in a soundproofed chamber; eyes closed. - 闕作意 (no intentional engagement): mind-wandering, "zoning out." - 未得 (not yet attained): an infant's pre-conceptual cognition; severe intellectual disability. - 相違 (conflicting condition): overwhelming pain suppressing other awareness; severe stress narrowing consciousness. - 已斷 (cut off): a defilement, having been abandoned through insight, no longer triggers related mind-states. - 已滅 (already destroyed): the past moment of consciousness that has ended. - 已生 (already arisen): in some readings, the past moment which is no longer the present moment — so present-moment mind cannot be "that one."
The contemporary mirror is *arousal and attentional gating*: when the reticular activating system is suppressed (anesthesia, coma), when sensory input is gated out (sensory deprivation), when executive attention is disengaged (default-mode rumination, dissociation), when the necessary neural substrates are absent or damaged — consciousness, in the working sense, is not arising. The treatise does not need a brain, but its *checklist* is structurally compatible with the brain's *conditions for conscious processing*. This is what we will return to in the next section.
3. Why Contemporary People Need This Map
You might reasonably ask: why do I need a technical classification of states of non-mind?
Three reasons, each practical.
3.1 Because the popular language conflates things that are radically different
Modern spirituality has compressed many states under one word: "no-mind," "ego death," "presence," "awakening," "flow," "bliss." The Yogācāra map is an *uncompressor*. It insists that an exhausted mind, a sleeping mind, an intentionally blank mind, a confused mind, a meditatively absorbed mind, and a finally liberated mind are not all the same. Conflating them causes:
- People to overestimate their attainment ("I had a silent retreat; I touched no-mind") — when they touched, at most, deep sleep or subtle meditative absorption. - People to underestimate clinical states ("My father's coma is just a deep meditation") — when it is a radical absence by every criterion. - People to misdiagnose their confusion ("I lost myself in a psychedelic trip; that must be enlightenment") — when it may be the 心亂 criterion (mind present but disordered).
The map asks you to be specific about what kind of no-mind you are looking at or claiming.
3.2 Because the conditions for consciousness matter to your daily life
The 八種不生因緣 (eight conditions that prevent mind from arising) is a useful personal inventory. If you are suffering from too much conscious agitation, the map suggests *which lever* might quiet it — is your sense-organ overwhelmed? Are you in a sensory-overloaded environment? Is your 作意 (intentional engagement) exhausted? Is a conflicting condition (pain, threat) suppressing awareness? Different levers, different solutions.
This is also a useful caution against the contemporary temptation to *pursue* no-mind as a state. The map says: most states called no-mind are produced by *removing* conditions for consciousness — often by exhaustion, damage, or suppressive interventions. You cannot engineer your way to the ultimate 无心 by removing conditions; you can only remove the seed-bearer itself through insight and a long path.
**3.3 Because the *ālaya-vijñāna* distinction matters, even stripped of metaphysics**
Even if you do not believe in a "storehouse consciousness" that survives death, the *functional* distinction the treatise is drawing is real and important: **there is a difference between a mind that has stopped functioning *momentarily* and a mind that has stopped *generating its own continuity*.** Sleep, fainting, meditative absorption: the system paused. Whatever seeds the system was laying down (neural consolidation, implicit memory, somatic changes, relational patterns) *continued to be laid down during the pause.* The pause itself did not wipe the slate.
This is a sharp corrective to the popular belief that "peak experiences" or "ego-death trips" rewrite you. They don't. The deepest continuity is *not* touched by a temporary quieting. If you want change, it has to happen at the level of the seeds themselves, not at the level of moments of phenomenological silence.
This is, in fact, structurally compatible with contemporary understanding of memory consolidation, implicit learning, and the way trauma is stored at somatic and procedural levels — none of which are erased by a quiet contemplative weekend. The treatise, without knowing the neuroscience, already saw this point clearly.
4. Common Misreadings and Clarifications
4.1 "No-mind in Chan/Zen is the same as 無心地 in Yogācāra."
Not quite. Chan/Zen "no-mind" (無心) is a *positive* description of awakened responsiveness — a mind that does not get stuck on objects, that functions freely without attachment. It is closer to what the treatise would call *心無亂* — a non-disordered mind (不亂心), functioning without the four inversions — or, in the very highest understanding, the *ālaya-vijñāna* being extinguished, with function continuing through the *jñāna* (智慧, wisdom) of a Buddha. The Yogācāra *acittaka-bhūmi*, by contrast, is a *technical classification of states where 心心所 are absent*. The two share two characters; their referents are different. Conflating them is one of the most common mistakes in popular books on Buddhism.
4.2 "Deep meditation = no-mind = enlightenment."
The treatise explicitly denies this. The very entry warns that 無想定 is 假有 — merely conceptual, not a real existing thing. A meditation in which you successfully silence thought is a *constructed object of mind*, not the unconstructing of mind. The warning that "sleep covering the mind is not realization" was written precisely to forestall this confusion. The *first-principle* criterion demands *ālaya-vijñāna* itself to be cut. Meditation quiets the surface; it does not, by itself, cut the deepest layer.
4.3 "Sleep, coma, anesthesia, and nirvāṇa are all the same kind of 'mindless.'"
By the *分位* criterion, they are all named as "mindless positions," yes — and by the *生不生* criterion, mind is not arising in all of them. But by the *第一義* criterion, only nirvāṇa-without-remainder is real no-mind. The others are temporary. The same word covers both, and that is precisely why the treatise insists on the five-fold lens — to prevent you from treating the sleep-hazed and the finally liberated as equivalent.
**4.4 "The *ālaya-vijñāna* is just a metaphysical extra; we can drop it and keep the rest of the teaching."**
You can, but you will lose the move that gives the whole classification its bite. Without *ālaya-vijñāna*, you cannot distinguish *temporary* no-mind from *final* no-mind. The whole point of the *第一義* criterion is that there is a layer below the everyday mind whose presence or absence makes a categorial difference. Whether you call it *ālaya-vijñāna*, "implicit memory store," "procedural substrate," or "deep continuity of self-organization," the *claim* is the same: the cessation of phenomenology is not the cessation of the system that produces phenomenology. Drop the distinction, and the map flattens to a set of folk labels.
4.5 "If no-mind is so hard to achieve, why bother cultivating it?"
Two responses. First, the treatise is not asking you to *cultivate* no-mind as such; it is asking you to *understand* what kind of no-mind any given experience is. The map is for *clarity*, not for *attainment*. Second, the path the treatise implies is *precisely* the one that knows the difference: enough quietude to *see* the substrate clearly, enough clarity to *cut* the substrate. Without the quietude you cannot see; without the seeing you cannot cut. The map is not a destination. It is the lens through which the path becomes navigable.
4.6 "Neuroscience has now 'proven' these states."
It hasn't, and it likely can't in the form the question implies. Modern neuroscience has documented that: - General anesthesia reliably suppresses markers of conscious processing. - Some long-term meditators show reduced default-mode network activity, sometimes approaching levels seen in anesthesia — but without the loss of behavioral responsiveness. - "Cessation events" in advanced Theravāda practitioners have been measured with EEG, showing transient reductions in cortical activity consistent with the meditators' first-person reports of experiential gaps. - Sleep and coma show distinct neural signatures from each other and from meditative states.
These are *suggestive parallels* — the Yogācāra checklist of eight non-arising conditions maps reasonably well onto conditions under which cortical and subcortical systems fail to support conscious processing. But suggestive parallels are not identity. Neuroscience has not validated the *ālaya-vijñāna*, has not shown that the deepest continuity is cut at death, has not identified a "karma store" in the brain. It has shown that the *conditions* under which conscious experience arises and does not arise can be empirically characterized — which is precisely the move the treatise makes. The match is at the level of *causal architecture*, not at the level of metaphysical identity. (And it should be noted: the neuroscience of "advanced" meditative states is still small-sample, first-person-report-dependent, and contested among researchers themselves.)
4.7 "This is just scholastic taxonomy; it has no practice relevance."
The practice relevance is precisely the warnings the treatise embeds in the classification: - Do not mistake exhaustion for liberation. - Do not mistake refined silence for the cutting of the seed-bearer. - Do not mistake *ālaya-vijñāna*'s continuing presence for the success of your practice. - Do not mistake a mad person's damaged cognition for your own waking mindfulness.
Each of these is a live, contemporary error. The classification is not metaphysical ornamentation; it is a hygiene of discernment about the most intimate question in practice: *is my mind quiet, or has it stopped?*
A Final Note: What This Concept Asks of You
*Acittaka-bhūmi* — 無心地 — is the treatise asking you, with the precision of a pharmacist, to be specific about what kind of "absence of mind" you are looking at. Sleep is not samādhi. Samādhi is not cessation. Cessation is not nirvāṇa. Nirvāṇa is not a peak experience. A peak experience is not a quiet weekend.
And underneath all the technical moves, the entry has a quiet thesis: **most "no-mind" experiences in ordinary life are *less* profound than they feel.** They are pauses in the transforming consciousnesses. The deepest layer — call it *ālaya-vijñāna* or the substrate of continuity itself — is largely untouched by them. If you want to be honest with yourself about your practice, you cannot skip this layer. If you want to be honest with yourself about your suffering, you cannot collapse the difference between a temporary quiet and a final one.
The map doesn't give you the destination. It gives you the honesty to walk toward it without mistaking the inns for home.