Peace be on you. The light or flame or bulb, the glass around, and the reflector; this system transmits light far away. In spiritual sense, God is the basic Light – The beloved Light. When Prophets are sent, their practice on Divine teachings makes this Light more visible to the world.
To make this Light stay and to sent it at far distances, there is Khilafat i.e. Successorship to Prophethood. Holy Quran mentions this whole phenomenon as:
“Allah is the Light of the heavens and the earth. The similitude of His Light is as a lustrousniche, wherein is a lamp. The lamp is in a glass. The glass is as it were a glittering star. The glass is as it were a glittering star……………….” (from Ch 24: V36)
Khilafat is a bounty and is conditional with faith and good deeds, as mentioned in Holy Quran (24:56).
It was prophesied by Holy Prophet (s.a.w.) that it would be established in initial part of Islam and then in Latter days. (Gist)....