The problem of illusion and reality can alone be solved by the study of nature, in nature especially is the realization of the self. The wise understand that the consciousness is covered under all the garments of man's planes of existence. In fact the sources such as mind and body, which build up the personality of an individual, are changeable and liable to destruction, therefore neither the body nor the mind can be called a reality, as such is the nature of their functions, their work and their outcome.