Self-denial to a Sufi is different to those who deny themselves all things of life. Self-denial for the Sufi is the denial of the false self which one had as the conception of self. His whole concentration and meditation is meant to get rid of that false conception of himself. A Sufi says: Man's very being is truth. It cannot be taught nor learned. It exists. The realization must come by itself. There are no doubt some studies to go through, but that is not the main thing. Meditation and concentration are only taught to make it easy for a person to advance. Truth is not an object to be given, it is one's own being. One can realize the truth by communicating with oneself.