Satyananda Yoga Nidra was devised by Sri Swami Satyananda Saraswati from traditional Tantric practices and has had a major impact on the world of yoga. Satyananda Yoga Nidra is a pratyahara technique in which the distractions of the mind are contained and the mind is allowed to relax. This practice has had a profound transformative effect on practitioners.
People feel that they are relaxing when they collapse in an easy chair with a cup of tea or coffee, a drink or a cigarette and read a newspaper or switch on the television. But this, in fact, is merely sensory diversion. Twentieth century research into sleep has proven that even entering into this traditional haven will rarely banish stress. True relaxation is an experience far beyond all this. For absolute relaxation one must remain aware. This is Satyananda Yoga Nidra, the state of dynamic sleep.
Satyananda Yoga Nidra is a systematic method of inducing complete physical, mental and emotional relaxation. During the practice, one appears to be asleep, but the consciousness is functioning at a deeper level of awareness.
Full details of the practice are set out in the book Yoga Nidra by Swami Satyananda Saraswati.