Matter is bottled-up energy and when matter is reduced to its essence it is mind. The psychic body has several layers-crude psychics, subtle psychic and so many layers. But in the spiritual realm there cannot be any body. It is the witnessing factor, attached to the body. Whatever the physical body is doing, your spirit, that is the cognitive faculty remains attached to it, and knows and sees and witnesses what it is doing. Similarly preaching the gospels of peace would not give you peace. You are to convert yourself from small to big. So people shall focus their mind and they concentrate on a particular work and in turn they can lead a better life for the future.