Dance to denounce the world

It is said that Amir Khusrau was once present in a mehfil of Sam’a (Assembly of music-listening) at the khaneqah of Nizamuddin Aulia, when he got so ecstatic with the music that he stood up and almost started dancing. Nizamuddin Aulia waved at him to sit down, and said “you shouldn’t dance, you are a worldly man.” He further added : “If you must dance, then do it in such a way that your hands are raised to the sky as if calling out to God, and your feet should hit the earth as if denouncing it.”