by Paramahansa Yogananda
The Kriya Yoga meditation technique of pranayama, life-force control that transmutes breath into subtle lifetronic energy, brings positive realization that the composition of the body is pure cosmic energy. In the adept practice of Kriya, the body is oxygenated and its atoms etherealized until it becomes light as a feather.
Man has no idea how much power comes into the body when he has mastered the mystery of the breath. Kriya practice brings a regulated, continuous inflow of oxygen into the body, the atoms of which, by the process of pranayama, are transmuted into life force, reinforcing the subtle currents in the spine. In turn these currents awaken the astral cerebrospinal centers and spiritualize the entire body.
After years of successful practice, the body of the advanced Kriya Yogi becomes so spiritualized that in exalted states he can hardly feel it touch the ground. The suffusion of life force becomes so powerful that the whole body loses its delusive solidity and actually levitates. I can testify to that from my own experience. But the beginner should not expect to jump weightless tomorrow!
Modern man is accustomed to getting results quickly; his industry and technology manufactures products so rapidly that he thinks there should be a convenience package of concise spiritual progress as well. A presumption of instant spiritual achievement is perhaps more than a bit audacious considering the innumerable lifetimes already spent in making oneself an unspiritual being. Even a lifelong practice is little to be required. Nevertheless, the Kriya Yoga science and art of meditation are not drudgery, because gradual transforming results are felt from the very beginning.