Bhagavad Gita 13.1

श्री भगवानुवाच · śrī bhagavānuvāca

इदं शरीरं कौन्तेय क्षेत्रमित्यभिधीयते।एतद्यो वेत्ति तं प्राहुः क्षेत्रज्ञ इति तद्विदः॥

idaṃ śarīraṃ kaunteya kṣetramityabhidhīyate |etadyo vetti taṃ prāhuḥ kṣetrajña iti tadvidaḥ ||

The Blessed Lord said, "O Arjuna, this body is called the field; he who knows it is called the knower of the field by those who know them."

Lord Shri Krishna replied: O Arjuna! The body of a person is the playground of the Self; and That which knows the activities of Matter, sages call the Self.

Our plain-language meaning of this verse is waiting for scholar review.