If man dived deep enough within himself he would reach a point of his ego where it lives an unlimited life. It is that realization which brings man to the real understanding of life, and as long as he has not realized his unlimited self he lives a life of limitation, a life of illusion. When man in this illusion, says "I," in reality it is a false claim. Therefore everyone has a false claim of "I" except some who have arrived at a real understanding of the truth. This false claim is called in Sufic terms Nafs, and the annihilation of this false self is the aim of the sage. But no doubt to annihilate this false ego is more difficult than anything else in the world, and it is this path of annihilation that is the path of the saints and the sages.