The human mind is an incomprehensible mystery because knowing it is something more puzzling than that. The reason is that every human being has an individual mind. There is a world for him in it. It is very difficult to understand another person. Because everyone is in their world. They can only think of others if they know the ways to get out of their world. If not, they will understand others only with the events of their world. I seek to explain about that incomprehensible world here.