Bhagavad Gita 18.75
व्यासप्रसादाच्छ्रुतवानेतद्गुह्यमहं परम् । योगं योगेश्वरात्कृष्णात्साक्षात्कथयतः स्वयम् ॥
vyāsa-prasādāc chrutavān etad guhyam ahaṃ param / yogaṃ yogeśvarāt kṛṣṇāt sākṣāt kathayataḥ svayam
Translation
By the grace of Vyasa I have heard this supreme secret, this yoga, directly from Krishna, the Lord of Yoga, himself speaking.
Reflection
Through which grace, sage, friend, text did this teaching reach you?
Read this verse in its chapter: Chapter Eighteen
Sanjaya names two graces. Vyasa-prasadat, the grace of Vyasa, the sage who granted him divine sight to witness the field from the king's quarters. Sakshat kathayatah svayam, Krishna himself, in person, speaking. The chain of transmission is honored, sage to seer to king to text to reader. Yogam, yoga, the entire teaching collected under that name. Yogeshvarat krishnat, from Krishna, the Lord of Yoga. The title yogeshvara comes back into the text near its close, framing what has been delivered as the very source's authoritative word. The frame narrator is telling the listening king and us, what you have heard is not philosophy with attribution; it is the Lord himself, transcribed.