The rejuvenating effects of sleep are due to man’s temporary unawareness of body and breathing. The sleeping man becomes a yogi; each night he unconsciously performs the yogic rite of releasing himself from bodily identification, and of merging the life force with healing currents in the main brain region and the six sub-dynamos of his spinal centers. The sleeper thus dips unknowingly into the reservoir of cosmic energy which sustains all life. The voluntary yogi performs a simple, natural process consciously, not unconsciously like the slow-paced sleeper. The KRIYA YOGI uses his technique to saturate and feed all his physical cells with undecaying light and keep them in a magnetized state. He scientifically makes breath unnecessary, without producing the states of subconscious sleep or unconsciousness. By KRIYA, the outgoing life force is not wasted and abused in the senses, but constrained to reunite with subtler spinal energies. By such reinforcement of life, the yogi’s body and brain cells are electrified with the spiritual elixir. Thus he removes himself from studied observance of natural laws, which can only take him-by circuitous means as given by proper food, sunlight, and harmonious thoughts-to a million-year Goal. It needs twelve years of normal healthful living to effect even slight perceptible change in brain structure, and a million solar returns are exacted to sufficiently refine the cerebral tenement for manifestation of cosmic consciousness. Untying the cord of breath which binds the soul to the body, KRIYA serves to prolong life and enlarge the consciousness to infinity. The yoga method overcomes the tug of war between the mind and the matter-bound senses, and frees the devotee to reinherit his eternal kingdom. He knows his real nature is bound neither by physical encasement nor by breath, symbol of the mortal enslavement to air, to nature’s elemental compulsions. Introspection, or “sitting in the silence,” is an unscientific way of trying to force apart the mind and senses, tied together by the life force. The contemplative mind, attempting its return to divinity, is constantly dragged back toward the senses by the life currents. KRIYA, controlling the mind DIRECTLY through the life force, is the easiest, most effective, and most scientific avenue of approach to the Infinite. In contrast to the slow, uncertain “bullock cart” theological path to God, KRIYA may justly be called the “airplane” route.