When a man considers himself he knows that there was a time when he was non-existent, as it is written in the Koran: "Does it not occur to man that there was a time when he was nothing?" Further, he know that he was made out of a drop of water in which there was neither intellect, nor hearing, sight, head, hands, feet, etc. From this it is obvious that, whatever degree of perfection he may have arrived at, he did not make himself, nor can he now make a single hair.