Belief is not an imagination, belief is a miracle in itself, for belief is creative. For instance a person certainly believes that he can get so many centimes for a franc, and everyone believes it, because there is evidence. He has not far to go for the evidence. He has only to go to the bank to find out. But belief is difficult when there is no evidence. It is just like building a castle in the air, but then that castle becomes paradise. If one believes in what does not exist, the belief will make it exist; if there is a condition that one believes in, even if that condition does not exist, it will be produced. The difference between the mind of the believer and the mind of the unbeliever is this, that the mind of the believer is like a torch and the mind of the unbeliever is like a light which is covered by something which does not allow it to spread its light.