Chapter 9 · The Royal Secret · Krishna said
Bhagavad Gita 9.15 — Worship by knowledge
ज्ञानयज्ञेन चाप्यन्ये यजन्तो मामुपासते। एकत्वेन पृथक्त्वेन बहुधा विश्वतोमुखम् ॥
jñānayajñena cāpyanye yajanto māmupāsate | ekatvena pṛthaktvena bahudhā viśvatomukham ||
Meaning
Others worship me through the offering of knowledge — as the One, as distinct from themselves, or in many forms as the one whose face is everywhere.