unswerving devotion to me, without meditation on any one else; resorting to clean places, distaste for assemblages of men, constancy in knowledge of the relation of the individual self to the supreme, perception of the object of knowledge of the truth, this is called knowledge; that is ignorance which is opposed to this. I will declare that which is the object of knowledge, knowing which, one reaches immortality; the highest Brahman, having no beginning nor end, which cannot be said to be existent or non-existent.