THE SCIENCE OF KRIYA YOGA
The quickest and most effective approach to the goal of Yoga employs those methods of meditation that deal directly with energy and consciousness. It is this direct approach that characterizes Kriya Yoga, the particular system of meditation taught by Paramahansa Yogananda. Specifically, Kriya is an advanced Raja Yoga technique that reinforces and revitalizes subtle currents of life energy in the body, enabling the normal activities of heart and lungs to slow down naturally. As a result the consciousness is drawn to higher levels of perception, gradually bringing about an inner awakening more blissful and more deeply satisfying than any of the experiences that the mind or the senses or the ordinary human emotions can give.
All scriptures declare man to be not a corruptible body, but a linving soul. The ancient science of Kriya Yoga reveals a way to prove this scriptural truth.
Referring to the sure and methodical efficacy of devoted practice of the Kriya science, Parmahansa Yogananada declared: "It works like mathematics; it cannot fail."