Allah is the Lighter of the heavens and the earth. The example of His Light is like a tube, in which there is a wick. The wick is in a lamp and the lamp is as a glittering planet kindled from a Blessed Tree, an olive that is neither of the East nor of the West. Its oil would almost shine forth though no fire touched it. Light upon light; Allah guides to His Light whom He will. Allah strikes parables for people. Allah has knowledge of all things.