Krisna gives the analogy of the field and says – The body is the ksetra, field. Know Me as the ksetrajna, Knower-of-field in all fields. He divides the field, matter, into thirty-one segments. The Spirit is different from them. Children enjoy playing with masks. The more grotesque the mask, the greater is the thrill. Their amusement springs from knowing that the masks are different from them. They are immune to the aberrations of the masks.