"If a person has attained the firm knowledge that he is not an object of perception, but is that pure consciousness which shines clearly in the states of waking, dream and deep sleep, and which, as the witness of the whole universe, dwells in all bodies from that of the Creator Brahma to that of the ant, then he is my Guru, irrespective of whether he is an outcaste or a Brahmana. This is my conviction."