Bhagavad Gita · Chapter 13: The Field and the Knower of the Field

Bhagavad Gita 13.33

yathā prakāśayatyekaḥ kṛtsnaṃ lokamimaṃ raviḥ | kṣetraṃ kṣetrī tathā kṛtsnaṃ prakāśayati bhārata ||

As the one sun lights up this whole world, so the lord of the field lights up the whole field, Arjuna.

Modern context

One sun lights the whole world; one knower lights the whole field. Everything in the body and mind is seen by the light of awareness, just as everything on earth is seen by sunlight. The sun does not become what it lights up. It shines on a flower and a rubbish heap alike, without becoming either. Awareness, too, lights every experience without being changed by it.