In the name of Allah, the Beneficent, the Merciful
God, the Blessed and Exalted says:
“Allah is the light of the heavens and the earth (of the personal world); His light is as a niche in which is a lamp, and the lamp is in a glass, the glass is (so transparent) as though it were a glittering star (like a pearl); it is lit from (the oil of) a blessed tree, an Olive neither of east nor of the west, the oil of which (is so capable that it) would well-nigh give light though no fire touched it, (it is not one light but) – light upon light; – Allah guides to His light whom he pleases; and Allah strikes parables for men; and Allah all things does know. (And that lamp is lit) in houses which Allah has permitted to be exalted, and His name to be remembered therein, where His tasbih is recited in the mornings and in the evenings.” (24:35-36)
[…] The same one light in the similitude of the lamp has continued to burn in the inner house of the Prophets and the Imams, because each one of them in his time was the living house of God. And according to this unchangeable Divine law the present and the living Imam is the sacred house of God, which He has commanded to be revered. And what great mercy it is that the holy Jam’at-Khanah represents God’s house and it is extremely blessed for the Isma’ili Jama’at, for in it are hidden the great miracles of spirit and spirituality.