śhrī bhagavān uvācha
imaṁ vivasvate yogaṁ proktavān aham avyayam
vivasvān manave prāha manur ikṣhvākave ’bravīt||1||

Meaning : Lord Krishna says:
“This spiritual wisdom is very ancient. I first taught it to the sun god. He passed it on to Manu, and Manu taught it to Ikshvaku. In this way, it was passed down through many generations. Because you are my devotee, I am now sharing this secret with you.

The light we call ‘I’—the sense of being—is never-ending.
It is the first light that appears in the universe.
Just like the sun rises and brings light to the world,
when we wake up from sleep, this inner light—the feeling of ‘I am’—
appears in the mind and makes us aware again.”