What This Concept Is Really About
Imagine you walk into a room and notice: the hum of the refrigerator, the way afternoon light falls on a cup, a low-grade tightness in your jaw, the flicker of "I should reply to that email," a half-second where you almost smile at a memory. Nothing dramatic has happened. There has been no big emotion, no ethical decision, no peak insight. And yet — *something* has happened. A moment of mind, fully furnished.
The Abhidharma tradition of Vasubandhu's *Abhidharmakośa* (*Apidamo Jushe Lun* / 《阿毘達磨俱舍論》) calls that fully-furnished minimum a "great-earth" mental factor set. "Great earth" (mahā-bhūmika) means: these factors are the ground (地, bhūmi = the place a thing ranges over) on which every conscious moment stands. Wherever there is mind — good, bad, or morally neutral — these factors are already there doing their work. "Constantly present in every mind" (謂法恒於一切心有) is the formal definition.
There are ten of them: 受 (vedanā), 想 (saṃjñā), 思 (cetanā), 触 (sparśa), 欲 (chanda), 慧 (prajñā), 念 (smṛti), 作意 (manaskāra), 胜解 (adhimokṣa), 三摩地 (samādhi). They are listed as the first of the Five Categories of mental factors (五品心所) — the others being the great-good (大善地法), the great-defiled (大煩惱地法), the great-unwholesome (大不善地法), and the minor-defiled (小煩惱地法). The Great-Earth factors come first because they are the *common denominator*: every mind-moment — whether you are meditating, raging, daydreaming, or driving on autopilot — has at least these ten running.
The Abhidharma tradition is famous for thinking in tables. Here is one of the most useful:
- A wholesome mind-moment in the desire realm: 22 factors (10 Great-Earth + 10 Great-Good + 2 of search/applied & sustained thought) - An unwholesome mind-moment bound up with fundamental ignorance: 20 factors (10 Great-Earth + 6 Great-Defiled + 2 Great-Unwholesome + 2 of search/sustained) - A neutral, unperturbed mind-moment: 12 factors (10 Great-Earth + 2 of search/sustained)
The number 10 is the constant. Whatever kind of mind you are in, the ground floor has ten rooms.
The Ten Factors, Individually Defined
This is where Abhidharma precision earns its keep. Each of these ten has a technical sense that is easy to flatten if you translate too quickly. Here is the classical definition and the common flattening to watch out for.
1. 受 (Vedanā) — Feeling-tone, threefold. Definition: the threefold reception of an object as pleasant, unpleasant, or neither-pleasant-nor-unpleasant (苦、乐、俱非). It is *not* "emotion" and *not* "opinion about the experience." It is the immediate felt-tone, the body's and mind's first yes/no/so-what verdict. Common flattening: equating 受 with "suffering" (as in the first noble truth, *duḥkha*). In the four-noble-truths sense, 受 includes both pleasant and unpleasant tones — only the clinging to them is the "suffering" of the second turning. Here, 受 is simply the affective tag.
2. 想 (Saṃjñā) — Mark-grasping. Definition: taking on a distinctive mark (差别相) of an object. The mind snags a feature and says, in effect, "this is *like that*" — table-ish, friend-ish, dangerous-ish. 想 is the labeling-and-recognizing function, not "imagination" and not "thinking through an idea." Common flattening: equating 想 with "thought" or "imagination." It is closer to your visual cortex's pattern-recognition — the function by which a shape becomes "chair" before you've consciously thought about it.
3. 思 (Cetanā) — Volitional construction. Definition: that which makes the mind move into action; mental construction (令心有所造作). This is the direct definition of karma at the level of a single mind-moment. Common flattening: equating 思 with "intention in the sense of a future plan" or with "outward action." Neither is right. 思 is the in-the-moment shaping of mind, the small "leaning toward" or "leaning against" that happens *inside* the moment — the bodily, verbal, and mental acts are downstream of it.
4. 触 (Sparśa) — Contact. Definition: that which arises when three things come together — sense faculty (根), object (境), and consciousness (识). Touch (in the broad sense) is the *meeting*; before contact, no experience. Common flattening: thinking 触 means the skin or the literal sense of touch. In Abhidharma, *every* sensory and mental experience has a 触 — including thoughts and emotions. "Eye, visible object, and eye-consciousness meet → contact → feeling-tone → perception." This is the standard formula.
5. 欲 (Chanda) — Aspiration for a goal. Definition: the wish to undertake a task (希求所作事业). It is a directed wanting — a leaning-toward-an-object-to-be-done. Common flattening: equating 欲 with "greed" or "lust" (the unwholesome rāga). At the Great-Earth level, 欲 is neutral. A meditator's wholesome desire to sit, a child's desire to master walking, a driver's desire to reach home — all are 欲 at this level. Rāga is a separate, unwholesome factor built on top of it.
6. 慧 (Prajñā) — Investigation. Definition: discriminative investigation of dharmas (于法简择). The mind sifts: this vs. that, true vs. false, useful vs. useless. Common flattening: equating 慧 with "wisdom" in the full Buddhist sense (paññā leading to liberation). The Great-Earth 慧 is the basic discerning function — even a confused mind discriminates ("the brake pedal, not the accelerator"). True liberating wisdom is built on this factor but is not the same thing.
7. 念 (Smṛti) — Present retention. Definition: clearly holding the object of attention without forgetting (对所缘明记不忘). It is *not* memory of the past; it is the present-moment keeping-in-mind of the present object. Common flattening: thinking 念 means "remembering past lives" or "reciting the Buddha's name." In Abhidharma, the 念 in the Great-Earth list is the structural function of attention staying with what is in front of you. Mindfulness meditation (smṛtyupasthāna) is built on this factor but adds much more.
8. 作意 (Manaskāra) — Initial attention. Definition: that which makes the mind alert, that which draws consciousness toward an object (令心警觉). If 念 is the holding, 作意 is the reaching-toward. Common flattening: equating 作意 with "motivation" or "deliberate intention." It is closer to the first spark — the function that draws mind out of drowsiness or distraction toward an object. Without 作意, no experience gets going.
9. 胜解 (Adhimokṣa) — Resolve. Definition: decisively certifying an object (对境印可). The mind says "yes, this is so" — sometimes strongly, sometimes tentatively. Common flattening: thinking 胜解 is "strong opinion" or "judgment." At the Great-Earth level it is neutral. It can underlie either insight or delusion — a mind that resolutely certifies "I am worthless" is using 胜解 no differently from a mind that resolutely certifies "this impermanent."
10. 三摩地 (Samādhi) — One-pointedness. Definition: mind-one-object-ness (心一境性). The mind stays unified on its object without scattering. Common flattening: thinking 三摩地 means "deep meditation." Here it is the *basic* one-pointedness that occurs in any moment of genuine attention — when you read a number and dial it correctly, when you track a fastball. Full meditative absorption (jhāna / dhyāna) is a higher refinement of this same factor.
These ten together constitute, in Vasubandhu's words, the "harmonious universal presence" (和合遍有) of every mind-moment. When he stresses that distinguishing one factor from another in a single moment is extraordinarily subtle — he likens it to a colored medicine whose color you can see but whose taste-difference you cannot easily detect — he is not being modest. He is signaling that this kind of analysis is *not* for ordinary introspection; it is for trained meditative reflection (觉慧).
A Disagreement Inside the Same Treatise
The Kośa records two readings of what "constant in every mind" means, and does not declare a winner.
- The main view (正说): in any single mind-moment, all ten factors are simultaneously present. Every act of mind has, at minimum, this full set. - The alternative view (异说): a factor qualifies as "Great-Earth" if it pervades *the three grounds* (the three sense-spheres of coarse, subtle, very-subtle; the three ethical qualities of wholesome/unwholesome/neutral; the three training stages of untaught/trained/trained-adept). Under this reading, the ten need not all be present in any one moment — they can come and go as appropriate, as long as each covers its three grounds.
Both readings are recorded without an explicit verdict. For practical purposes, the main view is the one usually carried forward in the commentarial tradition, but it is honest to know that an alternative exists. The dispute turns on a question that is genuinely subtle: are these factors co-arising in a tight metaphysical bundle, or are they functional "ranges" each covering all mind without requiring simultaneous instantiation?
Where Great-Earth Meets Great-Defiled
A beautiful Abhidharma move: five of the Great-Earth factors, when they occur *under the influence of defilement*, are re-named under the Great-Defiled list, but their substance is the same. The *Abhidharma* lists them twice, but the Kośa says the entity is already present in the Great-Earth ten.
- Contaminated 念 = 失念 (lost attention) - Contaminated 三摩地 = 心乱 (mental scatteredness) - Contaminated 慧 = 不正知 (incorrect knowing) - Contaminated 作意 = 非理作意 (unreasonable initial attention) - Contaminated 胜解 = 邪胜解 (wrong resolve)
The other five — 受, 想, 思, 触, 欲 — are *not* given defiled names; they are classed as Great-Earth only. This is not a coincidence. Sensation (受), recognition (想), volition (思), contact (触), and aspiration (欲) are intrinsically value-neutral in a way that the more cognitive-attentional factors (attention, retention, discrimination, resolve, one-pointedness) are not — those latter can be *aimed* wrongly, and when they are, we call them by harsher names. The point is structural: *the same attention, when corrupted, becomes "lost attention."*
A Walk-Through in a Contemporary Moment
Let's pick one ordinary second — you're at your desk, a Slack notification lights up, you glance at it.
Before the glance: a small 作意 (manaskāra) has already fired. Something drew the corner of your eye. That is 作意 at work — the alert, the reaching-toward. Without it, the notification would not have registered.
The glance lands: 触 (sparśa) has occurred. Eye, screen, eye-consciousness met. The contact is instant; you didn't feel anything called "contact," but the meeting is the precondition for everything that follows.
The contact is followed by 受 (vedanā) — a quick sensation-tone. Pleasant (curiosity, recognition), unpleasant (annoyance), or neutral (low-grade, barely-noticed). Even a "neutral" reading is a 3rd-kind 受, not an absence.
想 (saṃjñā) tags the object: "Slack notification. From Alex. Probably about the meeting." The mark-grasping is so fast it seems like the same step as 受, but they are distinct functions — one receives a tone, the other recognizes a shape.
欲 (chanda) leans in: "I want to read this / I want to ignore this." Even the impulse *not* to read is a chanda — desire-to-do-X includes desire-to-not-do-X.
思 (cetanā) is the in-the-moment shaping: it is what makes you actually start to reach for the phone or actually start to type. If you, say, curse internally and keep working, the 思 in that moment was the lean-back-keep-working.
慧 (prajñā) sorts: "this looks like an FYI, not urgent" — the discrimination.
念 (smṛti) keeps the object in present awareness: you don't immediately forget what the notification said.
胜解 (adhimokṣa) certifies: "yes, that is the situation" — even if the certification is provisional and unconscious.
三摩地 (samādhi) keeps mind unified: for a beat, your attention is collected on this one thing instead of scattered across five tabs.
All ten, in one second. Even the most neutral-seeming moment of mind is *furnished*.
A second scenario: sitting on a meditation cushion. Eyes closed. Trying to focus on the breath.
作意 brings mind to the breath. 触 — contact of mind with the breath-sensation. 受 — pleasant, unpleasant, or neutral tone of the breath (most of us cycle through all three). 想 — recognition: "long breath, short breath, cool at the nostril." 欲 — the aspiration to keep going (this is a wholesome 欲, not greed). 思 — the small inner shaping that, on a given exhale, decides to extend the breath a little. 慧 — discriminating subtle sensation from imagined sensation. 念 — keeping the breath-object in present awareness. 胜解 — certifying that this is the practice, even when it is boring. 三摩地 — staying with the breath rather than jumping to thoughts.
A third scenario: a difficult moment in an intimate conversation. Partner says something you find hurtful.
作意 lifts attention to the words. 触 — the meeting. 受 — sharp unpleasant tone, possibly. 想 — instant recognition: "she is accusing me of X." 欲 — leans in two directions simultaneously: to defend, to understand. 思 — the moment-to-moment shaping: the words you form, the tone you choose. 慧 — quickly sifting "is this accurate / is this a pattern / am I missing something." 念 — remembering what she said last week, also remembering *what you wanted to say* in this very conversation. 胜解 — certifying that you have been misunderstood (or, with luck, certifying that you might be wrong). 三摩地 — staying with the conversation rather than dissociating or scrolling mentally.
Where most people map this wrong: they identify the entire experience with 受 ("the feeling") or with the *content* recognized by 想 ("the thought"). The Abhidharma point is that the texture of the moment is *ten-plied*, and the texture — not just the label — is what determines what kind of mind-moment it is, and what its karmic weight will be.
Why a Contemporary Reader Needs This
The Great-Earth factors are, in effect, the *operating system* of mind. Most contemporary Buddhist reading focuses on the high-end phenomena — emptiness, non-self, dependent origination, awakening. The Great-Earth analysis is the ground floor. It matters because:
1. It dissolves the "meditation vs. life" split. The same ten factors are running in traffic, in arguments, in meetings, in loving. The mind on the cushion is not a different substance from the mind at the office; it's the same ten factors, sometimes with more wholesome additions (大善地法), sometimes with more unwholesome ones. Knowing the ground floor lets you bring meditative clarity into ordinary life without re-labeling life as "practice."
2. It makes ethics concrete. The Abhidharma accounting (22 / 20 / 12) is not a curiosity. It tells you that a *neutral* mind-moment has only the ground floor plus a little search-and-sustained-thought. The moment a wholesome or unwholesome factor joins, the count jumps. This is a workable picture of how moral coloration is layered onto bare awareness.
3. It honors the neutral. A lot of contemporary spiritual discourse romanticizes the dramatic — bliss, insight, ego death. The Great-Earth factors are mostly there in moments that *feel* unremarkable. The Abhidharma refuses to make consciousness dramatic-by-default. This is corrective against a quiet contemporary bias toward treating "spiritual" experience as a special state rather than as the unfolding of factors that are present *all the time*.
4. It gives a vocabulary for the cognitive sub-functions modern psychology is rediscovering. Modern attention research distinguishes alerting, orienting, and executive control — three functions modern neuroscience studies as separable. The Great-Earth list of 作意 (alerting), 念 (holding), 胜解 (certifying), 慧 (discriminating), 三摩地 (unifying) maps surprisingly well onto these distinctions. This is not proof of any Buddhist claim — neuroscience has its own unresolved debates about whether such functions are truly separable or just artifacts of experimental design — but the convergence suggests the Abhidharma is doing real cognitive phenomenology, not just metaphysics. The Kośa's own caveat — that even the most subtle factors can only be apprehended by trained reflective wisdom (觉慧), not by ordinary introspection — anticipates, with admirable honesty, the limits of any naive introspection-based analysis.
Common Misreadings and Corrections
- "大地法 means 'the earth element' or 'groundedness'." No. 大地 (mahā-bhūmika) is a *classifier* — these are factors pertaining to the "great ground," i.e., the ground of every mind. It is not an element (the earth-element is a separate, material phenomenon in the Abhidharma list of十八界).
- **"These are ten *types* of mind rather than ten factors in every mind."** No. They are mental *factors* (心所, caitasika) — they accompany the mind (心, citta). They are not themselves minds. Mind is one; factors are many. This is precisely what the "harmonious universal presence" (和合遍有) formula is designed to convey.
- "受 is suffering, 想 is thought, 思 is action." No, and this is the most consequential mis-translation. 受 is threefold feeling-tone (pleasant/unpleasant/neutral). 想 is mark-grasping, not conceptual thinking. 思 is in-the-moment volitional shaping, *not* external physical action (kāya-, vacī-, and mano-karma flow from it but are not identical with it). These distinctions are not pedantic — they are the working definitions used throughout the Kośa, and misunderstanding them warps the entire moral psychology.
- "All ten factors are always firing maximally." Not in the strong sense. The factors are *present* in the structural sense — they are not absent. But they function in degrees. 作意 can be faint (almost asleep) or sharp (vividly alert). 三摩地 can be a flicker (one-pointed for a tenth of a second) or sustained for hours. The factors are like instruments in an orchestra; the orchestra is "always playing" but the volume and intensity vary moment by moment.
- "慧 here is the same as prajñā leading to liberation." Not quite. The Great-Earth 慧 is the *discriminating function* itself — it operates in wise minds and confused minds alike. The liberating prajñā is built on this factor but is not identical to it; it requires the cultivation of *yathābhūta-jñāna-darśana* (seeing things as they really are), which is a separate project.
- "大地法 is something only monastics or scholars need." On the contrary — it is the most universal of the five categories, precisely *because* every mind has it. The Great-Good factors are not in unwholesome moments; the Great-Defiled factors are not in wholesome moments. Only the Great-Earth factors are in *all* moments, including the most ordinary ones.
- "If it's 'constant in every mind,' then I should be able to feel each one." The Kośa explicitly warns against this assumption. Even separating mind from mental factors in continuous experience is "extremely subtle" (极其微细); distinguishing the factors from one another in a single moment is more subtle still; "ordinary people" cannot do it from gross introspection alone — they require trained reflective wisdom (觉慧), which is exactly what meditative training aims at. This humility is built into the system, not a flaw to apologize for.
A closing image. When Vasubandhu says the Great-Earth factors are present in every mind-moment "with harmonious universal presence" (和合遍有), he is not exaggerating. He is also not asking us to perform a feat of mental surgery. He is offering a *map* — the ground floor of every conscious moment, recognizable the moment you know what to look for, and unnoticed only because it is so ordinary. The contemporary relevance of this map is that it restores dignity to the ordinary mind. You do not have to wait for a peak experience to be fully furnished. You already are.