Not a system but a field. Vedānta is the enquiry into what the Upaniṣads are actually saying, and because the Upaniṣads say many things, the enquiry produced at least eight full-scale schools that agree on the texts, agree on the method, and disagree about nearly everything else.
This page covers what all of them share — the foundation, the sūtra, the break with ritual, the questions in dispute. The schools themselves have their own tier.
Every other darśana on this site is one position. Vedānta is a shared problem, a shared canon and a shared method, inside which incompatible positions were worked out in full technical detail — and each of them claims to be simply reading the texts.
A Brahma-sūtra aphorism is often three or four words. Tadananyatvam ārambhaṇa-śabdādibhyaḥ (2.1.14) — “non-difference from that, because of the word origin and so on.” Whether that says the world is identical with brahman, or inseparable from it, or dependent on it, is not determined by the words. Eight schools read it eight ways, each with a straight face and a full defence. The compression that was meant to make the text memorable made it a mirror.
The reason Vedānta fractured is not that its commentators were partisan. It is that their text says apparently different things, and all of them have to be true.
tat tvam asi — “that thou art”, Chāndogya 6.8.7. ahaṁ brahmāsmi — “I am brahman”, Bṛhadāraṇyaka 1.4.10. ayam ātmā brahma — “this self is brahman”, Māṇḍūkya 2. neha nānāsti kiñcana — “there is no plurality whatsoever here”, Bṛhadāraṇyaka 4.4.19.
dvā suparṇā — “two birds, companions, cling to the same tree; one eats the sweet fruit, the other looks on without eating”, Muṇḍaka 3.1.1. pṛthag ātmānaṁ preritāraṁ ca matvā — “knowing the self and the impeller as separate”, Śvetāśvatara 1.6. And every passage that speaks of the self attaining, worshipping, or being ruled by the Lord.
sarvaṁ khalv idaṁ brahma — “all this is indeed brahman”, Chāndogya 3.14.1, which makes the world real and divine. Against Śvetāśvatara 4.10, which speaks of māyā, and the whole language of the world as a “name-and-form” resting on being.
Not to choose. Every school must take some set of these as stating the final truth and the rest as stating it in a qualified, provisional or figurative way — and must justify the assignment on principled grounds, not by preference. The choice of which sentences are primary is what a school of Vedānta is.
The catuḥsūtrī — four aphorisms on which Śaṅkara writes some forty pages and Rāmānuja rather more, because everything is already at stake.
अथातो ब्रह्मजिज्ञासा ॥ १.१.१ ॥
जन्माद्यस्य यतः ॥ १.१.२ ॥
शास्त्रयोनित्वात् ॥ १.१.३ ॥
तत्तु समन्वयात् ॥ १.१.४ ॥
athāto brahma-jijñāsā | janmādy asya yataḥ | śāstra-yonitvāt | tat tu samanvayāt
“Now therefore, the enquiry into brahman. That from which the origin and so on of this. Because it is the source of scripture. But that, because it is the purport.”
The same opening as Jaimini's, and the echo is deliberate — but what does the “therefore” point back to? For Mīmāṃsā it was the completed study of the Veda. Śaṅkara says it cannot be that here, because knowledge of brahman does not depend on having done the rites; what is required instead is the fourfold discipline: discrimination of eternal from non-eternal, dispassion, the six virtues, and the longing for release.
Rāmānuja disagrees: prior study, including the ritual portion, is the qualification. The two commentaries part company in their first paragraph.
The definition of brahman — that from which the world's origin, continuance and dissolution proceed. Nine words defining the subject of the whole enquiry.
Śaṅkara reads it as a taṭastha-lakṣaṇa, an accidental mark that identifies brahman without stating its nature — the way “the house with the crow on it” identifies a house. Rāmānuja and Madhva read it as a real description of the Lord who is genuinely the world's cause. Whether creatorship is essential to brahman or incidental is decided here.
Ambiguous in a way the tradition exploited. Read one way: brahman is what scripture is about, so scripture is the means of knowing it. Read the other: brahman is what scripture comes from, and a being from whom the Veda issues is thereby shown omniscient.
Śaṅkara takes both, in order. The second reading is precisely what Mīmāṃsā denies, since it makes the Veda authored.
The decisive one. The objection it answers is Mīmāṃsā's: scripture is authoritative only where it enjoins, so passages about an existing entity can carry no independent authority.
Śaṅkara's reply is the foundation of the whole Advaita edifice — that brahman is the purport of the Upaniṣads, and that a sentence stating a fact can itself remove ignorance and so liberate, without commanding anything. The word tu, “but”, carries the entire break with the ritual tradition.
If both portions are authoritative, must one do the rites and know brahman? Bhāskara and Maṇḍana Miśra say yes — jñāna-karma-samuccaya, the combination of the two. Śaṅkara says no, and cannot say otherwise: an act produces something new, while brahman is already the case, so nothing done can bring about knowing it. Rāmānuja finds a third way, treating the obligatory rites as purificatory and devotion as the real means. Where a school stands on combination predicts most of the rest of its practical teaching.
No school of Vedānta is atheist and none makes brahman a mere abstraction. The dispute is over what kind of cause, and whether brahman has attributes.
Brahman is beyond the senses and beyond inference; reason may support, systematise and defend, but cannot establish. Vedānta's reasoning is always reasoning within a text.
Nobody fell. There is no first moment of ignorance or of karma, and asking when it started is a malformed question — the series has no first term.
anāvṛttiḥ śabdāt. The liberated do not return. What differs is whether liberation is identity with brahman, or nearness, or likeness, or eternal service.
Eternal, and the subject of transmigration. Whether it is one or many, atomic or all-pervading, a part of brahman or brahman itself — all disputed.
The teaching is not for everyone at any time. Every school specifies a preparation, though they differ sharply on what it is and on who may undertake it.
| Sentence | Devanāgarī | Source | Veda |
|---|---|---|---|
| prajñānaṁ brahma | प्रज्ञानं ब्रह्म | Aitareya 3.3 — “consciousness is brahman” | Ṛg |
| ahaṁ brahmāsmi | अहं ब्रह्मास्मि | Bṛhadāraṇyaka 1.4.10 — “I am brahman” | Yajur |
| tat tvam asi | तत्त्वमसि | Chāndogya 6.8.7 — “that thou art” | Sāma |
| ayam ātmā brahma | अयमात्मा ब्रह्म | Māṇḍūkya 2 — “this self is brahman” | Atharva |
| Advaita | Viśiṣṭādvaita | Dvaita | Bhedābheda | |
|---|---|---|---|---|
| Does brahman have attributes? | Not ultimately. Nirguṇa; attributes belong to brahman as conditioned | Yes, and infinitely many, all auspicious. Nirguṇa means free of bad qualities | Yes. Viṣṇu, with a real personal nature | Yes, and the world is his real modification |
| What is the self? | Brahman itself, appearing as limited | A real, atomic, eternal mode of brahman — a part, and never the whole | Eternally distinct, and graded: selves differ in capacity and in destiny | Both different and non-different from brahman, and both truly |
| Is the world real? | Neither real nor unreal; it is mithyā — sublated by knowledge, not by argument | Entirely real, and the Lord's body | Entirely real, and entirely dependent | Entirely real, being brahman transformed |
| How is liberation reached? | By knowledge alone, which removes an ignorance that was never a fact | By devotion and self-surrender; knowledge matures into loving meditation | By devotion, and by the Lord's grace, which is not compelled | By knowledge and works together |
| And what is it like? | Being brahman; nothing is attained that was not always so | Enjoying brahman in a divine realm, with the self's individuality intact | Eternal service, and a graded bliss that differs by capacity | Non-difference, without loss of the self |
Each column is internally forced. Once Advaita holds the world to be sublatable, it must make liberation knowledge, since only knowledge removes an error; once Viśiṣṭādvaita makes selves real parts, it must make liberation a relation rather than an identity, and devotion rather than insight the means. The schools are not menus of independent choices. They are four consistent packages, and the argument between them is about which starting point the texts force.
Each school below has its own page: the ācārya, the texts, the technical machinery, the arguments made and taken, and the reading it gives of the sentences in §8.
The full comparison matrix, the tat tvam asi reading test applied side by side, and an ācārya-by-ācārya guide to who was arguing with whom.
matrixreading testlineages Śaṅkara · c. 750Non-duality. Brahman without a second; the world as neither real nor unreal; ignorance as the only thing that ever needed removing.
māyāvivartaadhyāsajīvanmukti Bhāskara · c. 900 · and earlierDifference-and-non-difference, held together without qualification. The oldest surviving position, and arguably the one the sūtra states.
upādhipariṇāmasamuccaya Rāmānuja · 1017–1137Qualified non-dualism. One reality with real internal distinctions; selves and matter as the Lord's body; the sharpest critique of Advaita ever written.
aprthak-siddhisaptavidha-anupapattiprapatti Madhva · 1238–1317Dualism. Five eternal differences, a doctrine of intrinsic gradation among selves, and a theory of the particular that no other school accepts.
pañca-bhedaviśeṣasākṣintāratamya Nimbārka · date disputedDualistic non-dualism. Difference and non-difference as equally natural to the relation, neither reducible to the other.
svābhāvika-bhedābhedaRādhā Vallabha · 1479–1531Pure non-dualism — pure because it needs no māyā. The world is brahman, unmodified; and grace, not effort, does the work.
puṣṭi-mārgaavikṛta-pariṇāmatirobhāva Caitanya · Jīva · BaladevaInconceivable difference-and-non-difference. The relation is real and is not renderable by reason — a claim defended, not conceded.
śakti-pariṇāmasvarūpa-śaktibhakti-rasa Śrīkaṇṭha · ŚrīpatiThe same three texts read with Śiva as brahman — Śrīkaṇṭha's qualified non-dualism and Śrīpati's Vīraśaiva reading, the least known corner of the field.
Śiva-viśiṣṭādvaitaśakti-viśiṣṭādvaita1 · What does it take to found a school of Vedānta?
The demand is exacting. A reading that succeeds on the Gītā and fails on the Chāndogya does not establish a school.
2 · Why is Brahma-sūtra 1.1.4 the decisive aphorism?
Without it, the Upaniṣads are eulogy and there is no enquiry to conduct. The single word tu, “but”, marks the break.
3 · What is the difference between vivarta and pariṇāma?
And the choice between them decides whether the world is a real product or a misapprehension — which then decides what liberation must consist in.
4 · On Rāmānuja's reading of tat tvam asi, what do the two words refer to?
Identity of reference with difference of mode, so nothing in either word has to be discarded — which is his standing objection to Advaita's method.
5 · Why is Vedānta best described as a field rather than a system?
The constraint that no Upaniṣadic sentence may be rejected is what makes the disagreements technical rather than sectarian.
An old question and a live one. The sūtra was composed centuries before any of its commentators, and its own position — if it has a single one — is not obvious. Scholars have argued for bhedābheda on the grounds that 2.1.14's language of non-difference sits alongside sūtras that treat the self as a part (2.3.43), and that a straightforward reading takes both at face value. Others hold that the text is deliberately terse in order to be systematised, and that asking for its own doctrine is like asking for a constitution's. What is clear is that each commentator finds his own school there, which is evidence of something about the sūtra.
Advaita presses the charge: either the qualifications are ultimately real, and you have dualism with a unifying label, or they are not, and you are an Advaitin who has not admitted it. Rāmānuja's reply is the doctrine of apṛthak-siddhi, inseparable existence — a mode has no being apart from its substrate and is not therefore a second thing. Whether that is a genuine third option or a redescription is the central question of the Viśiṣṭādvaita page, and it has never been settled.
Both, and untangling them is hard. Śaṅkara's daśanāmī order gave Advaita a continuous institutional base no other school matched; nineteenth-century Indology, working largely from Advaitin sources and finding in it something congenial to German idealism, then presented it to the world as Vedānta simply. Meanwhile Viśiṣṭādvaita and Dvaita have communities of practitioners today that dwarf Advaita's, and their technical literature is enormous and mostly untranslated. Take the standard picture with care: Advaita is one school among several, and the others were not answered so much as out-published in English.
| IAST | Devanāgarī | Sense |
|---|---|---|
| brahman | ब्रह्मन् | The one reality; the subject of the whole enquiry. Neuter; not to be confused with Brahmā the creator or with the brāhmaṇa class. |
| catuḥsūtrī | चतुःसूत्री | The first four aphorisms, on which every commentator states his whole position. |
| jīva | जीव | The individual self. Whether it is brahman, a part of brahman, or wholly other is the schools' central disagreement. |
| mahāvākya | महावाक्य | A “great sentence”; four are canonically listed, one from each Veda. |
| nirguṇa / saguṇa | निर्गुण / सगुण | Without qualities / with qualities. Advaita takes the first as ultimate; Viśiṣṭādvaita reads nirguṇa as “free of defect”. |
| pariṇāma | परिणाम | Real transformation of a cause into its effect, as milk into curd. |
| prasthāna-traya | प्रस्थानत्रय | The threefold foundation: Upaniṣads, Gītā, Brahma-sūtra. |
| samanvaya | समन्वय | Harmony of purport; that all the Upaniṣads converge on one subject. |
| upādhi | उपाधि | A limiting adjunct — what makes the one appear as many, as a pot appears to enclose a portion of space. |
| vivarta | विवर्त | Apparent transformation, in which the cause does not change at all. |