When Moses came to My meeting and His Lord spoke to him, he requested: "Lord, indulge me with the pleasure of looking at you." His Lord said: "You [are physically limited and] cannot see me. Look at that mountain [which is made of the matter]; if it can stand My [full] presence, then your eyes [which are made of the matter] will be capable to see me too". When His Lord manifested Himself to the mountain, that turned it into fine dust, and Moses fell unconscious. When Moses got back to normal, he said: "Lord, Glory is yours. Please accept my repentance. I am the first to believe in you."