What is Prajñā?
Prajñā (Pāli: paññā) is the Sanskrit term for wisdom in the direct sense: not knowledge accumulated through study, but insight that sees through the distortions that normally cloud perception. In classical Buddhism it is the third of the three trainings, after ethical conduct (sīla) and concentration (samādhi). The same word appears in Advaita Vedānta in the mahāvākya prajñānaṃ brahma ('consciousness is brahman'), where it is treated not as a doctrine to accept but as a direct recognition to arrive at.
Prajñā, jñāna, and vijñāna
Sanskrit has a precise vocabulary for different types of knowing. Vijñāna is discriminative knowing: the cognition that sorts a perceptual field into objects, names, and categories. Jñāna is knowing in the general sense. Prajñā names the cognition that has completed its movement — not the seeing-of but the seeing-into. The classical literature is equally precise about what prajñā is not. It is not information. The figure of the bahuśruta ('much-heard', 'learned') appears in both Theravāda and Vedāntic source-texts as a deliberate counterexample: the person who has heard everything and recognised nothing. Nor is it philosophical sophistication. The prajñāpāramitā texts describe the perfection of wisdom as the seeing of emptiness in the very concepts the analysis has been using, including the concept of wisdom itself. The result cannot be expressed as a position. The order of the three trainings makes the same point: prajñā arrives after sīla and samādhi, not in their place. A wisdom-claim made on a mind that has not done the prior work is, in the tradition's own diagnosis, prajñā's near enemy — the cleverness that mistakes itself for insight.
Buddhist and Vedāntic registers
In the Theravāda framing, paññā is the fruit of vipassanā: the clear seeing of the three marks of existence (anicca, dukkha, anattā) that the Satipaṭṭhāna Sutta maps through the four foundations of mindfulness. This wisdom is not produced by reasoning about the marks. It registers when sustained attention has stripped the perceptual field of the assumptions that normally occlude them.
The Mahāyāna inflection raises the stakes through the prajñāpāramitā literature — the 'perfection of wisdom' sūtras, of which the Heart Sūtra is the most compressed and the Diamond Sūtra the most read. There, wisdom is the seeing of emptiness (śūnyatā), inseparable from karuṇā. The bodhisattva is the figure in whom the two have become a single capacity. Nāgārjuna's Mūlamadhyamakakārikā is the philosophical spine of this reading.
In the Vedāntic register, prajñānaṃ brahma is the third of the four mahāvākyas. The Advaita tradition does not treat it as a metaphysical proposition. It is an object of contemplation, used with a teacher to dissolve the assumption of a separate experiencer. The classical sequence is śravaṇa (hearing), manana (reasoning), nididhyāsana (sustained contemplation). Prajñā is the recognition that arrives when the third stage has done its work.
Where to encounter it in the index
Rupert Spira's *Being Aware of Being Aware* opens from prajñānaṃ brahma and works the Advaita recognition into a sustained manana in conversational English. His longer-form talk on how the infinite knows the finite and the Q&A on intellectual versus lived knowing extend this; the second is nididhyāsana in a contemporary voice. Francis Lucille carries the same teaching in the direct-path lineage from Atmananda Krishna Menon through Jean Klein. Nisargadatta Maharaj's *I Am That* delivers prajñā without softening. Adyashanti's *Do Nothing* approaches it through a Zen question: what remains when every technique is set down. On the Buddhist side, Tara Brach and Jack Kornfield's Power of Awareness is the Theravāda framing of paññā as the fruit of vipassanā; the Plum Village teaching and Thich Nhat Hanh on emptiness, signlessness and aimlessness carry the prajñāpāramitā reading in Mahāyāna idiom. Jon Kabat-Zinn's MBSR programme is the secular descendant, with the clinical insight of the eight-week curriculum as its transposed form.