India's oldest scriptures are called śruti — ‘that which is heard.’ The Vedas were not a set of books but a body of sacred sound, passed from teacher to pupil by voice alone, generation after generation, long before anyone thought to commit them to palm leaf or paper.
To protect a text you cannot look up, the tradition built an astonishing memory technology. Beyond the plain recitation, students learned elaborate permutations — word-by-word, then in overlapping pairs, then woven and ‘knotted’ sequences (pada, krama, jaṭā, ghana) — each pattern cross-checking the others so that any slip stood out at once. The result was a living manuscript made of trained human minds, copied with a fidelity that written texts rarely achieve. The word came first; the page came much later.