“Allah is the Light of the Heavens and the Earth; a likeness of His Light is as a niche in which is a lamp.” So he (AS) replied: Allah has given an example for us. The Prophet (SA) and the Imams, may Allah bless them all, are the Signs of Allah through which He guides people towards Divine Unity, towards His Religion, towards Islamic law, and towards (religious) obligations and recommendations. There is no power except Allah, the Most High and Most Great.