Man thinks of his mortal form as solid flesh and bone. That is a concrete delusion. The body is an amalgam of countless infinitesimal subatomic particles; these particles are made up of finer-thin-atomic life energy and ultimately of sparks of consciousness whose source is Cosmic Consciousness. Everything existing in nature is energy in a more or less compact stage of vibration, exhibiting weight according to its mass or distinguishing gravitation. The phenomenal world operates under Mya, the law of duality, or optional states; it is thus an unreal world that veils the truth of the Divine Oneness and Unchangeableness. Mankind and their immortal aspect dream of this dualities and contrasts- life and death' health and disease, happiness and sorrow; but when he awakens in soul consciousness, all dualities disappear, and he knows themselves as the eternal and bliss Spirit. To rise above the duality of creation and perceive the unity of the Creator was conceived of as humanity's highest goal. Those who cling to the cosmic illusion must accept its essential law of polarity: flows and ebbs' rise and fall, day and night, pleasure and pain, good and evil' birth and death. This world is related to a dream. We are here today and gone tomorrow. Mere shadows in a cosmic dream, but, behind the shadows of these fleeting pictures is the immortality of the Spirit. Pramahansa Yoganada