Babaji
During the period of 1981 and 1992 Daniel Mitel practiced a “spinal breathing” meditation. He later found out that, in fact, he was practicing the Kriya Pranayama of The Kriya Yoga Great Master Babaji (Christ of Himalaya). He would sit for hours in a lotus posture and breathe in each of the seven spinal centers, stopping for few seconds up at the Bindu and coming down to Muladhara. He strongly recommends a combined practice of Kriya Yoga and Tai Chi. It cleans the body and the mind. Combined with certain exercises from Heart Imagery, it gives you God’s realization.
The Kriya Yoga Masters
Kriya Yoga is the science of controlling life energy – Prana. Kriya Yoga is a technique that activates the astral cerebrospinal centers Kriya Yoga hastens the practitioner’s spiritual development and helps to bring about a profound state of tranquility and God-communion.
Swami Satyananda
Kriya consists of body discipline, mental control, and meditating.
Patanjali
Kriya Yoga brings awareness of the Self.
Lahiri Mahasaya
Kriya Yoga brings you to Christ-Consciousness state.
Yogananda