Allah is the Light of the heavens and the earth; the example of His light is like a niche in which is a lamp; the lamp is in a glass; the glass is as if it were a star shining like a pearl, kindled by the blessed olive tree, neither of the east nor of the west – it is close that the oil itself get ablaze although the fire does not touch it; light upon light; Allah guides towards His light whomever He wills; and Allah illustrates examples for mankind; and Allah knows everything. (The Holy Prophet is a light from Allah)