He does only one thing: he helps that light that is in every soul to disclose itself. The light is there, inherent in all souls, but it is covered. He reflects the light that is in his own soul into the soul of the mureed. If the sun is shining in one mirror and other mirrors are focused with that mirror, then the light of the sun will be reflected in all. In the Hadith there is the saying of Muhammed, "I am knowledge, and my disciple (Ali) is the gate of knowledge." He did not say, "The scripture is knowledge," but "I am knowledge." Man is knowledge and through him it is handed down.