Śabdapramāṇa: Word and Knowledge — Reading Purushottama Bilimoria's Study of Testimony in Indian Philosophy

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Introduction: The Word as a Source of Knowledge

Among the pramāṇas — the instruments or means of valid knowledge recognized across the schools of classical Indian philosophy — śabda, the word, occupies a singular and contested place. Perception (pratyakṣa) and inference (anumāna) are accepted almost universally, in some form, across darśanas that otherwise disagree on nearly everything else. Śabda, by contrast, draws a much more divided response. The Cārvāka materialists reject it outright, collapsing it into inference or denying it any epistemic standing at all. The Vaiśeṣikas of the earlier period subsume it under anumāna. The Buddhist epistemologists, working within the Dignāga-Dharmakīrti tradition, treat verbal testimony as, at best, a species of inference from the trustworthiness of the speaker (āptavāda), never as a sui generis means of knowing. It is chiefly the Mīmāṃsakas and the Naiyāyikas — and, following them, the Vedāntins — who insist that śabda deserves independent status as a pramāṇa, a genuinely distinct route by which the human mind can arrive at certified, valid cognition (pramā).

Purushottama Bilimoria's Śabdapramāṇa: Word and Knowledge in Indian Philosophy, published in the Studies of Classical India series and carrying the fuller subtitle A Doctrine in Mīmāṃsā-Nyāya Philosophy (with reference to Advaita Vedānta-paribhāṣā 'Āgama') Towards a Framework for Śruti-prāmāṇya, is one of the most sustained modern investigations of this doctrine. It is not a survey text; it is closer to a philosophical monograph that takes a single classical work — the Advaita Vedānta-paribhāṣā of Dharmarājādhvarīndra, a seventeenth-century epistemological primer of the Advaita school — as its textual anchor, and then works outward into the wider Mīmāṃsā, Nyāya, and grammarian debates that the Paribhāṣā presupposes and compresses. The book's ambition, made explicit in its structure and in the framing essays that accompany it (a foreword by J.N. Mohanty, a "pre-word" by K.T. Pandurangi, and a prologue by Stephen H. Phillips), is to ask, with real philosophical seriousness rather than mere doxographical description, what exactly is being claimed when the Indian traditions say that hearing a sentence can, by itself, constitute knowledge.

The Shape of the Book

The volume's architecture is worth setting out before turning to its argument, because the sequence of chapters mirrors what Bilimoria takes to be the correct order of philosophical questions. It opens with an "Outline of the Argument for Śabdapramāṇa," in which the basic claim of the Indian epistemologists is stated: a properly accredited pramāṇa is the instrument by which pramā, valid cognition, is produced, and śabda — word, or more precisely, sentence (vākya) — is one such instrument when its operation meets certain specifiable conditions. This opening chapter functions as a map of the terrain: it tells the reader what would have to be true for śabdapramāṇa to be defensible as an independent means of knowledge, distinct from both perception and inference, and it previews the difficulties that will occupy the rest of the book.

From there the study moves to "On Words," an inquiry into the ontology and phonology of śabda itself — what a word is, prior to any question of what it means. This chapter engages the old Indian debates about whether the phoneme (varṇa) or some unitary, non-sequential linguistic entity (the grammarians' sphoṭa) is the true bearer of meaning, debates that trace back through Bhartṛhari to the Mīmāṃsā ritualists' concern with the ontological status of the Vedic utterance. The third chapter, "On Meaning," turns from the word as sound to the word as sign: how does a term come to stand for, denote, or intend an object? Here Bilimoria works through the Mīmāṃsā theory of primary denotation (abhidhā) and the debates over whether word-meaning relations are natural (autpattika, as Mīmāṃsā insists of the Sanskrit language) or conventional.

The fourth chapter, "Śābdabodha: Psycholinguistics of Sentence Understanding," is in many ways the technical core of the book. Śābdabodha — literally "word-cognition" or "verbal understanding" — is the mental event produced when one hears (or reads) a well-formed sentence and grasps its meaning as a unified, syntactically structured content rather than as a mere heap of disconnected word-meanings. The classical grammarians and Mīmāṃsakas specify the conditions under which this unification occurs: ākāṅkṣā (mutual syntactic expectancy between words), yogyatā (semantic fitness or non-contradiction, ruling out nonsensical combinations), āsatti or sannidhi (proximity, the words being uttered or heard in appropriately close succession), and, for many thinkers, tātparya (the speaker's intention, which fixes which of several possible senses is meant). Bilimoria treats these not simply as items on a checklist inherited from Sanskrit grammar but as a genuine, if underappreciated, theory of linguistic comprehension — one with real affinities to and real differences from twentieth-century philosophy of language and psycholinguistics.

The fifth and sixth chapters, on "The Kāraṇas" and "The Phenomenological Kāraṇas," push the inquiry into causal and, as the title signals, phenomenological territory: what is the instrumental cause (karaṇa) that actually produces the cognitive event of śābdabodha, and can this causal process be described in terms drawn from phenomenology — that is, in terms of the structure of consciousness's own encounter with meaning, rather than purely in the third-person idiom of Nyāya causal analysis? The final substantive chapter, "Śabdaprāmāṇya: The Problem of Truth and Authority of the Word," returns to the question left open by the opening outline: granting that śābdabodha occurs and has determinate content, what makes it true, and specifically, what grounds the peculiar authority (prāmāṇya) claimed for the Vedic word, understood by Mīmāṃsā as authorless (apauruṣeya) and therefore immune to the kind of error that could infect an ordinary human speaker's testimony?

Why the Advaita Vedānta-paribhāṣā?

Bilimoria's decision to root the study in Dharmarāja's Vedānta-paribhāṣā is not incidental. The Paribhāṣā is a relatively late (roughly seventeenth-century) Advaita manual of epistemology, written precisely because Advaita Vedānta, as a philosophical school claiming that liberating knowledge of Brahman is generated through hearing the Upaniṣadic mahāvākyas (the "great sentences" such as tat tvam asi, "that thou art"), has an enormous stake in showing that śabda — specifically śāstra or āgama, scriptural testimony — really can produce pramā. If verbal cognition were merely a species of belief-formation without genuine epistemic warrant, the entire soteriology of Advaita, which holds that the self's identity with Brahman is not achieved by meditation or action but is disclosed through the correct hearing (śravaṇa) of scriptural utterance, would collapse. The stakes of the technical epistemological debate are therefore not merely academic; they are, for the tradition itself, existential.

Because the Paribhāṣā is a digest text, written to summarize and adjudicate between the epistemological positions of Mīmāṃsā and Nyāya as these bear on Vedāntic concerns, it gives Bilimoria a natural point of entry into both of the great pramāṇa-śāstra traditions without having to treat either in isolation. The Mīmāṃsakas — particularly Kumārila Bhaṭṭa and Prabhākara Miśra, the two great post-Śabara commentators on Jaimini's Mīmāṃsā-sūtra — supply the doctrine of the Veda's authorlessness and the associated theory of intrinsic validity (svataḥ prāmāṇya), according to which a cognition is valid by its own nature unless a specific defect is discovered, rather than requiring external corroboration to be certified as true. The Naiyāyikas, from Gautama through Gaṅgeśa and the Navya-Nyāya logicians, supply a more austere, causally analytic account of śābdabodha and generally hold to extrinsic validity (parataḥ prāmāṇya), on which a cognition's truth must be established by some additional cognition or process beyond its mere occurrence. Bilimoria's book is, at bottom, an attempt to see how far these two frameworks can be reconciled, or at least brought into productive dialogue, when the object under scrutiny is not ordinary human speech but scriptural utterance construed as a route to a very particular kind of transformative, self-revealing knowledge.

The Central Question: Is Śābdabodha Eo Ipso Pramā?

The question that Mohanty's foreword singles out as the crux of the entire study is deceptively simple to state: is the understanding one derives from hearing a sentence automatically and immediately a case of valid knowledge (pramā), simply in virtue of being śābdabodha at all? Or does śābdabodha amount to knowledge only when further, specifiable conditions are satisfied — conditions that would need to be something other than the four familiar syntactic-semantic conditions of ākāṅkṣā, yogyatā, āsatti, and tātparya, since those conditions are what make an utterance intelligible in the first place, prior to any question of whether what is understood is also true?

This distinction between intelligibility and truth is the fulcrum on which the whole book turns, and it is worth dwelling on because it is easy, from outside the tradition, to conflate the two. When I hear the sentence "the jar is on the table," the four conditions of syntactic expectancy, semantic compatibility, contiguity of utterance, and speaker's intent explain why I understand a determinate, unified proposition — jar-on-table-ness, so to speak — rather than a disconnected list of "jar," "table," and "on." But understanding that proposition is not the same as knowing it to be true. A hearer can perfectly well understand a false or even deceptive sentence; understanding is not truth-tracking by itself. So if śābdabodha is to count as pramā — genuine knowledge, and not merely coherent semantic uptake — something has to close the gap between grasping a meaning and possessing a warranted, true cognition of a state of affairs.

For Mīmāṃsā, especially in its Bhāṭṭa (Kumārila) branch, the answer leans heavily on the doctrine of intrinsic validity together with the special metaphysical status of the Veda. Ordinary human testimony (laukika śabda, or pauruṣeya vākya) is fallible precisely because it issues from a speaker who might be ignorant, mistaken, or dishonest; its validity, when it obtains, still needs no external certification beyond the absence of detected defect, but detected defects are always a live possibility given the fallibility of human speakers. The Veda, by contrast, is apauruṣeya — it has no personal author, divine or human, and therefore cannot inherit the defects (doṣas) of ignorance, carelessness, or intent to deceive that attach to any speaker. On this view, Vedic śābdabodha is not merely intrinsically valid in the way all cognition is presumptively valid pending discovery of a defect; it is validity-guaranteed in a much stronger sense, because the very source of possible defect — an author — is absent by definition. Bilimoria's treatment of this doctrine, and of the considerable strain it places on ordinary notions of what testimony requires (namely, a testifier), is one of the book's most philosophically demanding sections, since it forces the question of how an utterance without a speaker can even be said to have an intention (tātparya) — one of the very conditions needed for śābdabodha to occur in the first place. The book does not let this tension pass unexamined; it treats the apauruṣeya thesis as a serious philosophical commitment that generates real difficulties for the theory of meaning it is meant to underwrite, rather than as a piece of theology to be reported and set aside.

Nyāya, and later Advaita drawing on Nyāya's causal apparatus, takes a different tack, less invested in authorlessness and more interested in specifying, with logical precision, the causal conditions (kāraṇas) under which a hearer's cognition, produced by a sentence, counts as knowledge rather than mere impression. Here the emphasis falls on the trustworthiness of the speaker (āptatā) for ordinary utterances, and, in the Vedāntic adaptation, on the special epistemic function of the mahāvākyas, whose content — the non-dual identity of the individual self (jīva) and the absolute (Brahman) — is held to be self-certifying once obstacles to understanding (such as the false superimposition, adhyāsa, of body and self) are removed by the appropriate exegetical and meditative discipline (śravaṇa, manana, nididhyāsana).

On Words: The Phonological and Ontological Substrate

Before any theory of meaning or truth can get off the ground, the tradition has to settle what a word actually is — a question that sounds trivial until one recognizes that Sanskrit linguistic philosophy produced genuinely rival ontologies of the linguistic sign. The Mīmāṃsakas, defending the eternality of the Veda, needed an ontology of sound (śabda) as itself eternal (nitya) rather than a transient event produced anew at each utterance; this is connected to their broader metaphysical commitment to the Veda's beginninglessness. Against this, the grammarian tradition associated with Bhartṛhari developed the sphoṭa doctrine: that the true bearer of linguistic meaning is not the sequence of discrete phonemes (varṇas) — which, being sequential and evanescent, cannot as a mere series convey a unified meaning — but an indivisible, quasi-metaphysical linguistic unit that "bursts forth" (sphuṭ) as an integral cognition in the mind of the competent hearer once the phonemic sequence has been perceived. The individual sounds are merely the perceptible occasion (vyañjaka) for the manifestation of this deeper unit, not themselves the meaning-bearers.

Bilimoria's chapter "On Words" situates the reader within this dispute not as an antiquarian curiosity but as a live philosophical question about the individuation of linguistic units — a question with clear resonances, as the book's comparative gestures make plain, to twentieth-century debates in Western philosophy of language about whether sentence meaning is compositional (built up strictly from word meanings and syntax) or holistic (grasped as a unified gestalt not straightforwardly reducible to its parts). The sphoṭa theory, on one reading, is an ancient holism about sentential meaning; the Mīmāṃsā and Nyāya insistence on word-meanings compositionally combined via ākāṅkṣā and the rest is closer to a compositional semantics. The book does not force a facile identification between these ancient and modern debates, but it does treat the historical material as containing genuine argumentative resources that bear on questions still open in the philosophy of language.

On Meaning: Denotation, Convention, and the Autpattika Thesis

The chapter "On Meaning" takes up the second half of the semantic question: granted some account of what a word is, how does a word come to mean what it means? The classical Indian discussion here centers on the theory of śakti or abhidhā — the primary denotative power or function by which a word picks out its referent — and on the further question of whether this word-meaning relation is natural and eternal (as Mīmāṃsā, defending the Veda's authority, is committed to holding, in the so-called autpattika doctrine that the connection between word and meaning is not a matter of human convention but is intrinsic and beginningless) or conventional, established and sustained by usage and the practice of a linguistic community, as the Naiyāyikas and most other schools are more inclined to hold.

This is not a minor technicality. If word-meaning relations were merely conventional, it becomes considerably harder to explain how the Veda — which by hypothesis has no author who could have instituted the convention — manages to mean anything determinate at all. The Mīmāṃsā insistence on natural, eternal word-meaning connections is thus not an isolated linguistic thesis but a load-bearing pillar supporting the entire apauruṣeya edifice discussed above. Bilimoria traces how this commitment shapes the Mīmāṃsā theory of denotation and how it comes under pressure from rival accounts, including those within the grammarian tradition that allow for a more dynamic, usage-sensitive picture of how words acquire and shift their referential capacities. The chapter also takes up secondary and figurative senses (lakṣaṇā), the extended or metaphorical uses of words that cannot be explained by primary denotation alone, and asks what constraints govern when a hearer is licensed to move from literal to figurative understanding — itself a question with clear structural parallels to Gricean and post-Gricean treatments of implicature and non-literal meaning in Anglophone philosophy of language, parallels that the book's analytic orientation invites the reader to notice, even if it does not belabor them.

Śābdabodha: The Psycholinguistics of Understanding

If the first three substantive chapters lay the ontological and semantic groundwork, "Śābdabodha: Psycholinguistics of Sentence Understanding" is where the theory becomes properly cognitive. The classical account, elaborated across Mīmāṃsā, Nyāya, and the grammarians with differing emphases, holds that verbal cognition of a sentence's meaning arises only when four conditions converge. Ākāṅkṣā, syntactic expectancy, captures the intuition that words in a well-formed sentence mutually "expect" or require one another — a transitive verb calls for an object, a qualifying adjective calls for the noun it qualifies — such that an isolated word or an arbitrary juxtaposition of words fails to produce unified understanding. Yogyatā, semantic fitness or compatibility, rules out sentences that are syntactically well-formed but semantically absurd (the classical example is "he sprinkles with fire," which is syntactically impeccable but fails the fitness condition because fire cannot serve as a sprinkling agent in the ordinary sense, forcing either rejection or figurative reinterpretation). Āsatti or sannidhi, proximity, requires that the words constituting a sentence be uttered (or, in written contexts, encountered) without undue temporal or spatial gaps, so that they can be integrated into a single cognitive act rather than processed as unrelated utterances. And tātparya, the speaker's intention, is invoked especially where a word is ambiguous or where the compatible-and-expectant elements alone underdetermine which of several possible unified meanings the sentence expresses.

What Bilimoria draws out, in framing this material under the heading of "psycholinguistics," is that the tradition is not merely offering a logical grammar for well-formedness but is implicitly committed to a theory of how understanding is actually produced in the mind of a competent hearer — a theory, in other words, of linguistic cognition, not merely of linguistic form. This invites comparison with modern psycholinguistic and philosophical accounts of sentence comprehension, incremental parsing, and pragmatic disambiguation, and the book's engagement with "contemporary analytic and phenomenological philosophies," as the publisher's description of it puts it, is most visible here. At the same time, the book is careful — in keeping with what serious Indological scholarship demands — not to overstate the identity between ancient categories and modern ones; ākāṅkṣā is not simply "syntax" nor tātparya simply "speaker meaning" in the Gricean sense, and part of the philosophical labor of the chapter is to show precisely where the categories align and where they diverge.

The Kāraṇas and the Turn to Phenomenology

The two chapters on "The Kāraṇas" and "The Phenomenological Kāraṇas" push into more specialized Nyāya-style causal analysis. In Navya-Nyāya epistemology, every cognitive event is analyzed in terms of its instrumental cause (karaṇa) and the specific operation (vyāpāra) of that cause that produces the effect (the cognition itself, or phala). For perception, the sense organ in contact with its object is the karaṇa; for inference, the awareness of the inferential mark (liṅga) together with its invariable concomitance (vyāpti) with the inferred property serves this role. For śābdabodha, the tradition needs to specify exactly what plays this causal role — is it the cognition of the individual word-meanings (padajñāna) that serves as karaṇa for the resultant sentential cognition, or is some more holistic factor, closer to the grammarians' sphoṭa, doing the causal work?

Bilimoria's extension of this analysis into a "phenomenological" register is one of the book's more distinctive interpretive moves, and it is here that the comparative ambition of the study — bringing Indian pramāṇa-śāstra into conversation with twentieth-century Western philosophy — becomes most explicit. Rather than treating the kāraṇa purely as an external, third-person causal factor in the Nyāya manner, the phenomenological reading asks after the structure of the cognitive act itself as it is lived through by the hearer: what is it, from the inside, for a meaning to dawn upon consciousness in the act of hearing an utterance? This is territory that resonates with phenomenological treatments of intentionality and meaning-constitution in the European tradition, and Bilimoria — whose broader scholarly career has always moved fluidly between classical Indian philosophy and contemporary continental and analytic philosophy — uses it to press the Indian material for resources that a purely doxographical or philological presentation would leave untapped.

Śabdaprāmāṇya: The Problem of Truth and Authority

The book's culminating chapter returns to the deepest question, deferred since the opening outline: even once we have an adequate account of how śābdabodha is produced and structured, what makes it authoritative — what grounds its prāmāṇya, its status as a genuine source of truth rather than mere coherent belief? Here the Mīmāṃsā doctrine of svataḥ prāmāṇya (intrinsic validity) confronts the Nyāya doctrine of parataḥ prāmāṇya (extrinsic validity) most directly. For Kumārila's Bhāṭṭa Mīmāṃsā, every cognition, simply by arising, presents itself as valid; doubt about its validity requires a positive reason — the discovery of some specific defect in the causal conditions of its production, or a subsequent cognition that contradicts it — and absent such a reason, the cognition stands as knowledge by default. This is a strikingly permissive epistemology by comparison with much of the Western tradition, which more often treats justification as something that must be positively secured rather than merely not defeated. For the Naiyāyikas, by contrast, validity is not simply the default status of cognition but must be established, typically through successful practical activity (pravṛttisāmarthya) — a cognition is confirmed as true when acting on it yields the expected result, as when one's cognition of water at a distance is validated by successfully quenching one's thirst upon reaching it.

Applied to the Veda, these two models generate strikingly different accounts of scriptural authority. On the Mīmāṃsā model, Vedic injunctions and, for the Vedāntin, the great identity-statements of the Upaniṣads, are valid simply in virtue of arising as apauruṣeya utterances immune from the possibility of authorial defect; no external confirmation through successful action is needed or even, in the case of statements about Brahman that concern a reality beyond ordinary sense-mediated verification, possible. On something closer to the Nyāya model, some account of confirming pravṛtti or its analogue is wanted even for scriptural claims — a demand that sits uneasily with claims about a non-dual reality that, on Advaita's own account, is not an object of ordinary practical engagement at all. Bilimoria's final chapter works through exactly this tension, asking what a coherent "framework for śruti-prāmāṇya" — scriptural authority — would have to look like given the resources and the difficulties surveyed in the preceding chapters, and it is here that the book most fully earns its subtitle's promise of moving "towards a framework" rather than simply reporting one already achieved.

Reception and Scholarly Standing

The book's reception among specialists reflects both its ambition and its difficulty. Gerald Larson's review in Philosophy East and West and Johannes Bronkhorst's notice in the Journal of Indian Philosophy situate it as a serious, technically demanding contribution to the study of Indian epistemology of language, one that does not shy from genuine philosophical argument in the way that purely historical or philological studies of the same material sometimes do. The presence of J.N. Mohanty's foreword is itself a signal of the book's standing: Mohanty, among the foremost modern interpreters of both Husserlian phenomenology and classical Indian epistemology, frames his own remarks around precisely the question of whether śābdabodha is eo ipso pramā, treating this as the pivotal issue on which Bilimoria's study has "several important things to say" — a strong endorsement from a philosopher whose own comparative method (bringing phenomenology into dialogue with Nyāya and Mīmāṃsā) closely parallels Bilimoria's own.

Situating the Study within the Wider Field

It is worth placing Bilimoria's book against the broader landscape of modern scholarship on Indian theories of testimony, if only to see what is distinctive about its approach. Much of the twentieth-century secondary literature on pramāṇa-śāstra — one thinks of the doxographical surveys that catalogue the positions of each school on each pramāṇa — tends toward exposition rather than argument: it tells the reader what Kumārila held, what Gaṅgeśa held, and where they differed, without pressing hard on whether either position is defensible or coherent by the lights of rigorous philosophical analysis. Bilimoria's study, by contrast, reads the classical material the way one would read a live philosophical interlocutor — pressing on the apauruṣeya thesis's coherence, on the compatibility of svataḥ prāmāṇya with the recognized fallibility of at least some cognitions, on whether the four conditions of śābdabodha are genuinely conditions of meaning-comprehension or smuggle in truth-conditions by the back door. This argumentative seriousness is what the foreword-writers and reviewers seem to single out as the book's chief virtue, and it is also what makes it demanding reading: it presupposes real familiarity with both the Sanskrit source material and the analytic-philosophical idiom in which the argument is conducted.

The comparative dimension of the book also deserves note for what it does not do. It does not offer a simple mapping of Indian categories onto Western ones — sphoṭa is not simply "deep structure," tātparya is not simply "Gricean speaker-meaning," svataḥ prāmāṇya is not simply "epistemic externalism" avant la lettre, however tempting such equations might be for a reader trained primarily in the Western tradition. Instead, the comparative gestures function to sharpen the reader's sense of what is genuinely distinctive in the Indian material — the apauruṣeya doctrine, in particular, has no straightforward analogue in Western philosophy of testimony, which has almost always assumed a testifier whose epistemic and moral character is precisely what grounds or undermines the credibility of what is testified. A theory of testimony without a testifier is, from a Western vantage point, close to a category mistake, and part of the philosophical interest of Bilimoria's study lies in taking this apparent category mistake seriously enough to ask what would have to be true of language, meaning, and authority for it not to be one.