Bhagavad Gita · Chapter 18: Freedom through Renunciation

Bhagavad Gita 18.75

vyāsaprasādācchrutavānetadguhyamahaṃ param | yogaṃ yogeśvarātkṛṣṇātsākṣātkathayataḥ svayam ||

By the grace of Vyasa I heard this supreme secret, this yoga, directly from Krishna, the lord of yoga, as he himself was teaching it.

Modern context

Sanjaya says he heard this directly from Krishna, by the grace of Vyasa. The chain of transmission is named: Krishna taught it, Vyasa made it possible for Sanjaya to hear, Sanjaya told the king, and the text has passed down to us. Every reader stands at the end of this long line, receiving by the grace of many teachers what was first spoken on a battlefield.