Bhagavad Gita Chapter 13
Powerful Cognition
All we need to do is understand and create the right cognition about the field and the knower, that is, what we are and what we are not.
śrībhagavānuvāca idam śarīraṁ kaunteya kṣetram ityabhidhīyate etadyo vetti taṁ prāhuḥ kṣetrajña iti tadvidaḥ
Bhagavān Kṛṣṇa replies: This body, O Kaunteya, is called the field, kṣetra. Anyone who knows this body is called the knower of the field, kṣetrajña