Self-realization is where the word is silent. The object of the Sufi is to enter into the silence, to learn to leave the form and the external world with all its attributes, to cease striving for anything but the goal. God is not in time, therefore He is in the silence. Sound is part of the world of time. The sage cannot say more than this, for the subject is so vast; when we come to this conception we find that it is altogether too subtle, too vast, to express.