Yoga Nidra, which is derived from the tantras, is a powerful technique in which you learn to relax consciously. In yoga nidra, sleep is not regarded as relaxation. People feel that they are relaxing when they collapse in an easy chair with a cup of coffee, a drink or a cigarette, and read a newspaper or switch on the television. But this will never suffice as a scientific definition of relaxation. These are only sensory diversions. True relaxation is actually an experience far beyond all this. For absolute relaxation you must remain aware. This is yoga nidra, the state of dynamic sleep. Yoga nidra is a systematic method of inducing complete physical, mental and emotional relaxation. The term yoga nidra is derived from two Sanskrit words, yoga meaning union or one-pointed awareness, and nidra which means sleep. During the practice of yoga nidra, one appears to be asleep, but the consciousness is functioning at a deeper level of awareness.

Asana Prana Yama Mudra Bandha is recognised internationally as one of the most systematic yoga manuals today. Since it's first publication by the Bihar School of yoga in 1969 it has been reprinted seventeen times and translated into many languages. It is the main reference text used by Yoga teachers and students of Bihar Yoga/Satyananda Yoga within the International Yoga Movement, and many other traditions as well.

This comprehensive text provides clear illustrations, step by step directions and details of chakra awareness. It guides the practitioner or teacher from the simplest to the most advanced practices of hatha yoga system. A therapeutic index is provided for use by doctors and yoga therapists incorporating recent information from research into yoga. This edition successfully brings the exposition of yoga practices to the standard of a university text.

This 2013 Golden Jubilee edition has been revised and updated under the direction of Swami Niranjananda Saraswati,the successor of Swami Satyananda Saraswati. Since publication of the first edition,interest in yoga has spread widely.Now the book is used in ashrams,centres and yoga schools in many countries as the standard textbook for teachers and students alike.The techniques presented have been assimilated by fields as diverse as medicine,education,entetainment,business,sports and the training of spiritual aspirants.

In the last few decades, yoga has helped millions of people to improve their concepts of themselves. Yoga realises that man is not only the mind, he is body as well. Yoga has been designed in a such a way that it can complete the process of evolution of the personality in every possible direction. Kundalini yoga is a part of the tantric tradition. Even though you may have already been introduced to yoga, it is necessary to know something about tantra also. Since the dawn of creation, the tantrics and yogis have realised that in this physical body there is a potential force. It is not psychological or transcendental; it is a dynamic potential force in the material body, and it is called Kundalini. This Kundalini is the greatest discovery of tantra and yoga. Scientists have begun to look into this, and a summary of the latest scientific experiments is included in this book.