Kriya Yoga is mentioned twice by the ancient sage Patanjali, foremost exponent of yoga, who wrote: “Kriya Yoga consists of body discipline, mental control, and meditating on Aum.”7 Patanjali speaks of God as the actual Cosmic Sound of Aum that is heard in meditation.8 Aum is the Creative Word, the whir of the Vibratory Motor, the witness9 of Divine Presence. Even the beginner in yoga may soon hear the wondrous sound of Aum. Through this blissful spiritual encouragement, he becomes convinced that he is in communion with supernal realms.