kṣetra-jñam — the knower of the field; ca — also; api — certainly; mām — Me; viddhi — know; sarva — all; kṣetreṣu — in bodily fields; bhārata — O son of Bharata; kṣetra — the field of activities (the body); kṣetra-jñayoḥ — and the knower of the field; jñānam — knowledge of; yat — that which; tat — that; jñānam — knowledge; matam — opinion; mama — My.