“Arjuna said: O my dear Krishna, I wish to know about prakriti [nature], Purusha [the enjoyer], and the field and the knower of the field, and of knowledge and the end of knowledge. The Blessed Lord then said: This body, O son of Kunti, is called the field, and one who knows this body is called the knower of the field.” (Bhagavad-gita, 13.1-2)