Vajra-Like, Because Nothing Can Break It
The third group of ten takes its name from the vajra — traditionally the hardest, most indestructible substance — and the ten minds gathered under it earn that name: faith, mindfulness, dedication, penetrating illumination, directness, non-retreat, the Great Vehicle alone, no-mark, suchness-wisdom, and indestructibility itself. With these ten complete, all thirty minds beneath the Ten Grounds are now finished.
A note on this chapter's difficulty. As with Chapters 3 and 4, the classical Chinese here is exceptionally compressed, and Elder Master Wei Sung's own commentary on this section is not part of the free archive we have access to (see Chapter 2 for the full explanation). These reading notes are Ru-Yi's own, describing the pattern we find across all ten minds rather than claiming certainty about every clause.
1. Milestone: The Mind of Faith (信心) — A Faith With No Fixed Thing to Believe In
The third group opens with faith named as the root of every virtue — and immediately dissolves any fixed object of that faith, down to the very subtlety of the believing mind itself.
盧舍那佛言：「千佛！汝先言金剛種子有十心。若佛子！信心者，一切行以信為首、眾德根本，不起外道邪見心。諸見名著，結有造業，必不受入空無為法中。三相無，無無生，無生無住，住無滅，滅無有，一切法空。世諦第一義諦智，盡滅異空。色空、細心心空。細心心心空，故信信寂滅，無體性和合亦無依。然主者我人，名用。三界假我我，無得集相，故名無相信。
Vairocana Buddha said: "Buddhas of a thousand worlds, you have asked about the ten minds whose seed is vajra-like. Disciples of the Buddha, one who has the mind of faith: in every practice, faith is taken as the very first thing, the root of every virtue, and one does not give rise to the false views of externalist teachings. Every such view, however named or clung to, only binds one further into the creation of karma, and can never be admitted into the unconditioned dharma of emptiness. The three marks of conditioned existence are themselves without any fixed nature: unborn without any fixed unborn-ness, unabiding once unborn, unceasing once unabiding, having no fixed "having" once ceased — every phenomenon is thus empty. The wisdom of both conventional truth and ultimate truth alike thoroughly dissolves any difference from this same emptiness. Form is empty; the subtle mind itself is empty; the very subtlety of that mind's own mind is empty. Because of this, faith itself, in its true nature, is still and extinguished, without any fixed substance to combine and without anything at all to depend on. Yet whatever seems to act as an owner, a self, or a person is merely a functional label. Within the three realms, this borrowed self has no fixed mark to be found or accumulated at all — this is why it is called markless faith."
Opening a group named for the vajra — the hardest, most indestructible thing — with faith rather than with strength or resolve is worth pausing on. The passage's own logic seems to be that faith becomes genuinely unbreakable only once it stops resting on any fixed object at all: an ordinary faith placed in a fixed belief can always be shaken by a good enough argument against that belief, but a faith that has already seen through to "markless faith" has nothing fixed left for an opponent to attack. This sets the tone for the whole group: each of the ten vajra minds will turn out to be indestructible for the same reason — not because it defends something successfully, but because it never depended on anything breakable to begin with.
2. Milestone: The Mind of Mindfulness (念心) — Recollection That Never Actually Arrives
Mindfulness is described through the classical six recollections, then carried into a description of change itself — arising, ceasing, transforming — occurring so instantaneously that it can be called motionless even while constantly in motion.
「若佛子！念心者，作念。六念常覺，乃至常施第一義諦，空無著無解，生住滅相不動不到去來，而於諸業受者，一合相迴向入法界智。慧慧相乘，乘乘寂滅，焰焰無常，光光無生，無生不起。轉易空道，變前轉後、變變轉化、化化轉轉，變同時同住。焰焰一相，生滅一時。已變未變、變變化亦得，一受亦如是。
Disciples of the Buddha, one who has the mind of mindfulness: giving rise to mindfulness, one is constantly aware through the six recollections, and even constantly offers the ultimate truth itself — empty, without attachment, without anything to be released from — the marks of arising, abiding, and ceasing neither moving nor arriving, neither coming nor going; and yet, regarding every karmic action and its recipient, one dedicates this same single, unified mark toward the wisdom that enters the dharma-realm. Wisdom upon wisdom builds upon itself, and this very building is itself still and extinguished; flame after flame is impermanent, light after light is unborn, and this unborn quality never itself arises. Turning and transforming the path of emptiness, changing what came before into what follows, transformation after transformation turning into further transformation, this change occurs at one and the same time as its own abiding. Flame after flame shares one and the same mark; arising and ceasing occur at one and the same moment. Whether already transformed or not yet transformed, this same transforming transformation still holds; and the same is true of whatever is received.
The classical six recollections — of the Buddha, the dharma, the saṅgha, giving, precepts, and the heavens — provide the concrete practice this mind starts from, but the passage quickly moves past any simple description of remembering those six things in turn. What follows is closer to a meditation on time itself: arising, abiding, and ceasing are described as happening so fast, and so continuously into one another, that "already transformed" and "not yet transformed" turn out to describe the very same moment. Mindfulness, on this reading, is not recollection of something in the past, but sustained attention to a present that never actually stops changing long enough to be pinned down as any fixed "this."
3. Milestone: The Mind of Dedication (迴向心) — Two Truths, Held Together Without Contradiction
Dedication here means directing merit toward the two truths at once — the genuine truth of karma's own unbroken causal succession, and the conventional truth of the provisional selves and persons who appear to generate it.
「若佛子！迴向心者，第一義空。於實法空智照有實諦。業道相續因緣中道，名為實諦。假名諸法我人主者，名為世諦。於此二有諦，深深入空而無去來，幻化受果而無受，故深深心解脫。
Disciples of the Buddha, one who has the mind of dedication: theirs is the emptiness of the ultimate truth itself. Through the wisdom of emptiness regarding genuine dharmas, one illuminates the truth that genuinely exists. The unbroken succession of the path of karma, within its own causes and conditions, is called the genuine truth; whatever is provisionally named among phenomena — a self, a person, an owner — is called conventional truth. Within these two truths, one enters ever more deeply into emptiness without any coming or going, receiving the fruit of what is like an illusion without actually receiving anything at all — and it is for this reason that the mind becomes ever more deeply liberated.
The two truths named here — the genuine truth of karma's own causal chain, and the conventional truth of the selves who appear to act within it — are not presented as competing accounts where only one can be right. Karma's succession genuinely operates, and a provisional self genuinely appears to receive its fruit; the passage's actual claim is that receiving this fruit "without actually receiving anything at all" is what dedicating merit properly means, once both truths are held together rather than one being used to cancel out the other.
4. Milestone: The Mind of Penetrating Illumination (達照心) — Four Kinds of Penetration, One Emptiness
This fourth mind names four distinct things it penetrates — the teaching itself, its meaning, its expression, and the actual teaching of others — before showing that even "function" and "penetration" themselves dissolve under the same scrutiny.
「若佛子！達照心者，忍順一切實性。性性無縛無解無礙，法達、義達、辭達、教化達。三世因果、眾生根行，如如不合不散。無實用、無用、無名用。用用一切空，空空照達空，名為通達一切法空。空空如如，相不可得。
Disciples of the Buddha, one who has the mind of penetrating illumination: accepting and according with the true nature of every single thing. This nature, in its own nature, is without bondage, without release, and without obstruction — penetrating in its grasp of the teaching, penetrating in its grasp of meaning, penetrating in its grasp of expression, and penetrating in its grasp of teaching others. The causes and effects of the three times, and the capacities and conduct of every being, are, in their suchness, neither combined nor scattered. There is no fixed function, no function at all, and not even a nominal function. Function upon function is itself entirely empty, and this very emptiness illuminates its own penetration into emptiness — this is what is called thoroughly penetrating the emptiness of every phenomenon. Utterly empty and utterly suchness, no fixed mark can actually be found here at all.
The four kinds of penetration listed — of the teaching, its meaning, its expression, and teaching others — map closely onto what later Buddhist scholasticism would formalize as the "four unhindered forms of eloquence": penetrating a teaching intellectually is not the same skill as penetrating how to put it into words another person can actually use, and the passage credits this mind with all four at once. Characteristically for this whole chapter, though, it does not stop at crediting a skill — it goes on to empty out "function" itself, so that penetrating illumination ends up meaning something closer to a clarity with nothing left to obstruct it, rather than a specialized ability successfully exercised.
5. Milestone: The Mind of Directness (直心) — Undamaged Even by Its Own Ignorance
Directness is described here as a direct illumination that takes even ignorance and the notion of a spiritual self as its own object — and finds that engaging with them directly, rather than avoiding them, leaves the underlying seed of the path completely undamaged.
「若佛子！直心者，直照。取緣神我，入無生智。無明神我空空中空，空空理心在有在無而不壞道種子。無漏中道一觀，而教化一切十方眾生，轉一切眾生皆入薩婆若空。真性真性真行於空，三界主者結縛而不受。
Disciples of the Buddha, one who has the mind of directness: direct illumination itself. Taking hold of whatever condition gives rise to a spiritual self, one enters the wisdom of the unborn. Ignorance and the spiritual self alike are empty within emptiness itself, and this same empty principle-mind, whether found in being or in non-being, never damages the very seed of the path. Through the single contemplation of the undefiled middle way, one teaches and transforms every being throughout the ten directions, turning every being toward this same all-knowing emptiness. True nature, true nature, truly practiced within emptiness — the ruler of the three realms, and all its binding fetters, is no longer accepted at all.
"Directness" here does not mean straightforwardness of character in the ordinary sense, but a refusal to look away from whatever is actually present — including ignorance and the deeply ingrained notion of a spiritual self, both taken up directly as objects of contemplation rather than problems to be avoided until they go away on their own. The passage's reassurance that this "never damages the very seed of the path" matters practically: it suggests directly examining one's own ignorance is safe rather than dangerous, provided it is genuinely seen as empty rather than either denied or indulged.
6. Milestone: The Mind of Non-Retreat (不退心) — Not Even a Single Thought of Turning Back
Non-retreat is described in cumulative, almost defiant terms: not entering the ground of ordinary beings, not reverting to earlier views, not even thinking of retreat, because the underlying reality admits no duality for retreat to move toward.
「若佛子！不退心者，不入一切凡夫地，不起雜長養諸見，亦復不起習因相似我人，入三界業亦行空而不住退。解脫於第一中道，一合行故不行退，本際無二故而不念退。空生觀智如如相續，乘乘心入不二，常空生心一道一淨，為不退一道一照。
Disciples of the Buddha, one who has the mind of non-retreat: not entering any ground of ordinary beings, not giving rise to the mixed views proper to long nurturing, and not giving rise to habitual causes resembling a fixed self or person; entering the karma of the three realms, one still practices emptiness without ever settling into retreat. Liberated within the foremost middle way, since this is a single, unified practice, one does not practice retreat at all; since the very origin of reality admits no duality, one does not even think of retreating. The contemplative wisdom born of emptiness continues unbroken in its own suchness; vehicle upon vehicle, the mind enters non-duality; ever born from emptiness, the mind holds to a single path and a single purity — this is what is called the single path and single illumination of non-retreat.
The passage is careful to distinguish two different levels at which retreat could occur: not practicing retreat (a matter of conduct) and not even thinking of retreat (a matter of the mind itself). Securing only the first would leave a practitioner still vulnerable to backsliding the moment circumstances changed; the passage insists on the second as well, grounding it not in willpower but in "the very origin of reality admitting no duality" — there being no second, opposite state for the mind to retreat toward in the first place.
7. Milestone: The Mind of the Great Vehicle Alone (獨大乘心) — What Actually Earns the Name "Great Vehicle"
This seventh mind makes a pointed claim about vocabulary: "Great Vehicle" is not a label anyone may claim simply by following Mahāyāna teachings, but a name earned only once the wisdom of emptiness is actually put to free use.
「若佛子！獨大乘心者，解解一空故，一切行心名一乘。乘一空智智乘，行乘乘智，心心任運任用任載，任一切眾生，度三界河、結縛河、生滅河。行者坐乘任用載用，智心趣入佛海，故一切眾生未得空智任用，不名為大乘，但名乘得度苦海。
Disciples of the Buddha, one who has the mind of the Great Vehicle alone: understanding again and again this same single emptiness, every practicing mind is given the single name of the One Vehicle. Riding upon this single wisdom of emptiness, wisdom itself becomes the vehicle; practice becomes the vehicle of this same wisdom; thought after thought moves freely, functions freely, and carries freely, carrying every being across the river of the three realms, the river of bondage, and the river of birth and death. One who practices this, seated in this vehicle, freely uses and freely carries with it, and this wisdom-mind advances directly into the Buddha's own ocean — which is why any being not yet having attained this free use of the wisdom of emptiness cannot yet be called the Great Vehicle at all, but only a vehicle capable of crossing the sea of suffering.
The distinction drawn at the close of this passage is a genuinely sharp one: a practice that carries a being across the sea of suffering is called merely "a vehicle capable of crossing the sea of suffering," while only a practice that has attained "free use of the wisdom of emptiness" earns the specific name "Great Vehicle." This suggests the sutra is using "Great Vehicle" less as a sectarian label distinguishing one school of Buddhism from another, and more as a technical achievement — a vehicle is only "great" once wisdom itself, not merely good conduct, is doing the carrying.
8. Milestone: The Mind of No-Mark (無相心) — Every Buddha, Exactly the Same As Oneself
The eighth mind makes one of this chapter's most striking claims of kinship: every Buddha is described as "exactly the same as oneself," and every sage as one's own fellow student — a claim grounded entirely in the emptiness they all equally share.
「若佛子！無相心者，妄想解脫。照般若波羅蜜無二，一切結業三世法如如一諦，而行於無生空，自知得成佛。一切佛是我等者，一切賢聖是我同學，皆同無生空，故名無相心。
Disciples of the Buddha, one who has the mind of no-mark: liberation from false, deluded thought. Illuminating the perfection of wisdom without any duality, every karmic bond throughout the three times is, in its suchness, a single truth, and one practices within this unborn emptiness, knowing for oneself that Buddhahood will surely be attained. Every Buddha is exactly the same as oneself; every worthy one and every sage is one's own fellow student; all alike share this same unborn emptiness — this is why it is called the mind of no-mark.
"Every Buddha is exactly the same as oneself" could sound like arrogance if it were a claim about accomplishment already equal to a Buddha's; the passage is careful to ground it instead in something already shared without exception — the same unborn emptiness underlying every being regardless of how far their practice has actually progressed. Read this way, the claim is closer to Chapter 1's own thesis about buddha-nature, restated here as a felt kinship rather than an abstract doctrine: a Buddha is not a different kind of being from oneself, only one in whom the same shared ground has already been fully recognized.
9. Milestone: The Mind of Suchness-Wisdom (如如慧心) — Even a Demon's Teaching, Discerned Without Rejecting It Outright
This ninth mind extends remarkably far: even the claims of externalist teachings and even what is spoken by demonic forces are gathered into this same discerning wisdom, rather than dismissed without examination.
「若佛子！如如慧心者，無量法界無集無受生，生生煩惱而不縛。一切法門、一切賢所行道、一切聖所觀法，所有亦如是。一切佛教化方便法，我皆集在心中。外道一切論邪定功用、幻化魔說佛說，皆分別入二諦處，非一非二，非有陰界入。是慧光明，光明照性入一切法。
Disciples of the Buddha, one who has the mind of suchness-wisdom: within the immeasurable dharma-realm, nothing is accumulated and nothing is received as arising, yet affliction after affliction still arises without ever actually binding one. Every dharma-gate, every path practiced by the worthy, and every phenomenon contemplated by the sages — all of this is likewise so. Every skillful means by which the Buddhas teach and transform beings, I gather all of it within this same mind. Every treatise of externalist teachings, whatever false, fixed effort or illusory power they claim, and every teaching, whether spoken by demons or spoken by a Buddha, is alike discerned as falling within the domain of the two truths — neither one nor two, and not confined to the aggregates, the elements, or the sense-fields. This is the very light of wisdom, and this same light illuminates its own true nature entering into every phenomenon.
Discerning "whether spoken by demons or spoken by a Buddha" within the same framework of the two truths is a notably even-handed formulation — this wisdom does not simply reject externalist or demonic teaching outright as beneath consideration, but places every kind of claim, however its source, within a single analytic framework capable of locating its actual truth-value. This matters practically for later chapters: several of the sutra's own precepts will insist a bodhisattva must still be able to engage respectfully and effectively with people holding wrong views, and a wisdom that already knows how to place any teaching within the two truths, rather than one that simply refuses to look at it, is what would make that engagement possible.
10. Milestone: The Mind of Indestructibility (不壞心) — Closing the Ten Vajra Minds, and All Thirty Minds Before the Ten Grounds
The tenth and final vajra mind closes not only this group of ten, but all thirty minds preceding the Ten Grounds: a being anointed by every Buddha, radiating light through every world, and entering the very samādhi from which the Ten Grounds themselves will open.
「若佛子！不壞心者，入聖地智近解脫位，得道正門、明菩提心，伏忍順空、八魔不壞，眾聖摩頂、諸佛勸發，入摩頂三昧，放身光光照十方佛土。入佛儀神，出沒自在動大千界，與平等地心無二無別，而非中觀知道。以三昧力故，光中見佛無量國土，現為說法。爾時即得頂三昧，登虛空平等地，總持法門聖行滿足。心心行空，空空慧中道無相照故。一切相滅，得金剛三昧門，入一切行門，入虛空平等地。如佛華經中廣說。」
Disciples of the Buddha, one who has the mind of indestructibility: entering the wisdom of the noble grounds, drawing near to the rank of liberation, attaining the true gateway of the path and the clear bodhi-mind; through the patient acceptance that subdues affliction and accords with emptiness, the eight demonic forces cannot destroy this mind. Every sage places a hand upon this practitioner's crown, and every Buddha urges them onward; entering the samādhi of the crown-anointing, they release light from their own body, illuminating the buddha-lands of the ten directions. Entering the Buddha's own dignified spiritual power, they move freely in and out, shaking the great trichiliocosm, no different at all from the mind of the ground of equality — though this is not yet the middle way's own direct knowing of the path. Through the power of this samādhi, they behold, within this light, immeasurable buddha-lands, manifesting there to expound the dharma. At that moment, they attain the very samādhi of the crown, ascending to the ground of empty, equal space, and every dhāraṇī-gate and noble practice stands completely fulfilled. Thought after thought moves within emptiness, since the wisdom of utter emptiness illuminates the middle way without any fixed mark. Every fixed mark now dissolved, they attain the vajra samādhi-gate, enter every gate of practice, and enter the ground of empty, equal space. This is explained at length in the Flower Adornment Sutra."
The crown-anointing described here — every sage placing a hand on the practitioner's head, every Buddha urging them onward — is the same rite of investiture later Buddhist literature associates with a bodhisattva's formal entry into the grounds proper, and its appearance at the very close of the thirty minds is not incidental: the passage explicitly says this "is not yet the middle way's own direct knowing of the path," meaning even this vajra-like indestructibility is still preparation for something further, not its final destination. The passage's own reference to the Flower Adornment Sutra (the Avataṃsaka) for a fuller account confirms what Chapter 1 already noted about this text's own classification: this sutra assumes real familiarity with Huayan literature, and treats its own forty-mind sequence as compatible with, rather than a substitute for, that fuller Avataṃsaka account. This closes all thirty minds — development, long nurturing, and vajra alike. The Ten Grounds themselves, the fourth and final group naming this stage of the path, open in the chapter that follows.