A place like Mecca, a desert with nothing of interest: the ground not fertile, the people not very evolved, no business or industry flourishing, no science nor art developed - has had an attraction for millions of people who have gone there for only one purpose, and that was pilgrimage. What was it, and what is it? It is the voice which has been put into the place, into a stone. A stone has been made to speak, and it speaks to those whose ears are open.