Dignāga (ཕྱོགས་གླང་)
Founder of the Buddhist logico-epistemological tradition. Traditionally held to be a student of Vasubandhu. Active in the 5th–6th centuries CE. Commonly dated to 480–540 CE (westerhoff-dignaga-dharmakirti, p. 218).
Life
Traditional accounts record that Dignāga was ordained in the Pudgalavāda tradition (specifically the Vātsīputrīya school) but grew dissatisfied with their theory of persons and eventually studied with Vasubandhu (westerhoff-dignaga-dharmakirti, p. 218). He also studied Sarvāstivāda Abhidharma, the Prajñāpāramitā-sūtras, and Yogācāra-vijñānavāda philosophy, as well as Brahmanical traditions (katsura-dignaga-lectures).
Intellectual Influences
Dignāga was much influenced by the Grammarian philosopher Bhartṛhari — his Traikālyaparīkṣā is nearly a copy of one section of Bhartṛhari’s Vākyapadīya (katsura-dignaga-lectures).
The composition of the pramanasamuccaya is surrounded by legend: Dignāga wrote its opening verse in chalk on a cave wall, only to have a non-Buddhist teacher called Kṛṣṇamunirāja repeatedly erase it. After defeating Kṛṣṇamunirāja in debate but being overwhelmed by the latter’s magical powers, Dignāga threw his chalk into the air, resolving to abandon his work — but the bodhisattva Mañjuśrī caught it mid-air and encouraged him, declaring the Pramāṇasamuccaya would become “the sole eye for all the other treatises” (westerhoff-dignaga-dharmakirti, p. 218).
Contributions to Pramāṇa
Dignāga was the first Buddhist thinker to formulate a complete, systematic logico-epistemological system. His pramanasamuccaya (Compendium of Valid Cognition, ཚད་མ་ཀུན་བཏུས་) established the foundational framework that dharmakirti would elaborate and defend.
Key innovations:
- Established that there are exactly two means of valid cognition (pramāṇa): perception (མངོན་སུམ་, pratyakṣa) and inference (རྗེས་དཔག་, anumāna)
- Originated the apoha (exclusion/elimination) theory of meaning — words refer not by picking out positive properties but by excluding what is not the referent
- Drew a sharp distinction between the specifically-characterised (རང་མཚན་, svalakṣaṇa) as the object of perception and the generally-characterised (སྤྱི་མཚན་, sāmānyalakṣaṇa) as the object of thought
- Formulated the triple mark (trairūpya) of valid inference: (1) the reason characterises the subject (pakṣadharmatā); (2) positive concomitance (anvaya); (3) negative concomitance (vyatireka) (westerhoff-dignaga-dharmakirti, p. 227)
- Distinguished inference for oneself (svārthānumāna) from inference for others (parārthānumāna) — the former a sequence of mental events, the latter its public linguistic expression (westerhoff-dignaga-dharmakirti, pp. 228–229)
- Rejected pramāṇasamplava (mixing of epistemic instruments): perceived and inferred objects are radically distinct (westerhoff-dignaga-dharmakirti, p. 234)
Perception
Dignāga described svalakṣaṇa entities as free from conceptual construction (kalpanāpoḍha) and indescribable. Perception “yields a total but unconceptualized, prelinguistic image” of its object (westerhoff-dignaga-dharmakirti, p. 221). He criticised the Nyāya definition of perception for redundantly including the property of being inerrant (avyabhicārin), since this is already part of what it means to be a perception (westerhoff-dignaga-dharmakirti, p. 224).
Dignāga recognised four kinds of perception: sensory, mental, yogic, and self-awareness of concepts (katsura-dignaga-lectures). Mental perception plays a connecting role between sense perception and conceptual cognition — like sense perception in being nonconceptual and object-directed, yet like conceptual cognition in not requiring an external sense organ (katsura-dignaga-lectures).
Self-Awareness (svasaṃvedana)
Dignāga’s most important contribution to Buddhist epistemology is self-awareness (svasaṃvedana, རང་རིག་). He uses the concept in two ways: (1) as the result of cognition (pramāṇaphala) — cognition arises with two appearances (dvirūpa), that of the object and that of itself, and the result is cognition’s awareness of its own object-appearance; (2) as the essential operation of all cognition — since perception arises with the form of its object, it is always “cognition of its own appearance,” i.e., self-awareness. This extends to conceptions as well, making every cognition characterised by self-awareness (katsura-dignaga-lectures).
Ontological Stance
Dignāga never presents an explicit ontology in the pramanasamuccaya, suggesting he sought to present a logic acceptable to philosophers of any background. Later Indian Buddhists classified him among Yogācāra-vijñānavādins, but modern scholarship holds that he operates as a Sautrāntika when dealing with epistemology and logic on the conventional level (saṃvṛti), and as a Yogācāra-vijñānavādin at the ultimate level (paramārtha). In the Nyāyamukha and the Pramāṇasamuccaya he presupposes external reality; in works like the Ālambanapārīkṣā he argues from the Yogācāra standpoint (katsura-dignaga-lectures).
Relationship to Abhidharma
Westerhoff reads Dignāga’s theory as a version of the Abhidharma project: svalakṣaṇa entities correspond to fundamental dharmas, and perception provides direct access to them. Conceptual construction (kalpanā) works only on groups of dharmas, assembling them into properties or individual objects (westerhoff-dignaga-dharmakirti, p. 221).
Reception in Tibet
Tibetan thinkers primarily received Dignāga through the lens of dharmakirti’s interpretations. As Dreyfus notes, “the Tibetan thinkers important to my perspective have understood him mostly through the grid of Dharmaklrti’s interpretations” (dreyfus-recognizing-reality, p. 1). Nevertheless, Dignāga’s works were translated into Tibetan and studied directly.
Sources
- dreyfus-recognizing-reality — discussed throughout, especially Introduction II
- westerhoff-dignaga-dharmakirti — extensive treatment of life, epistemology, inference, and apoha
- katsura-dignaga-lectures — detailed account of Dignāga’s integration of the vāda and pramāṇa traditions, ontological presuppositions, perception theory, and self-awareness