" As for the cave, this had even deeper symbolism. As almost any Muslim knows, Mohammad sought refuge in a cave after escaping his persecutors in Mecca. This was a period known as the Hejira. The cave was guarded by a series of divine interventions, including an acacia tree that sprouted to conceal the entrance, and a miraculous spider’s web and dove’s egg that made it seemed unoccupied. Muslims know, too, that Mohammad’s vision of the Koran occurred in a mountain cave.26 "

― Matthew Syed , Rebel Ideas: The Power of Diverse Thinking