And because, He knows that Unmanifest Kshetra, He is, therefore, also called Kshetrajna. And because also Soul enters into Unmanifest Kshetra (viz., the body), therefore is He called Purusha.
क्षेत्रं जानाति चाव्यक्त क्षेत्रज्ञ इति चोच्यते। आव्यक्तिके पुरे शेते पुरुषश्चेति कथ्यते॥