Paramhansa Yogananda's unique spiritual Yoga system of 39 Energisation Exercises can be used to develop your will power by using concentrated attention to draw abundant energy consciously into your body at all times from the eternal limitless Source of Cosmic Energy that is within and around you, recharging it with energy and vitality. With such will power and life energy, you can experience your spiritual subtle nature and positively transform your life. The Energisation Exercises invigorate the mind with vitality and enthusiasm, creating a spiritually elevating influence on one's attitude to daily life. The physical benefits of these exercises are important for keeping your body fit and healthy, but their primary benefit is that their practise strengthens the will power, which is the cornerstone of the science of Raja Yoga and an essential tool for the practice of Kriya. A practical companion to Paramhansa Yogananda's Autobiography of a Yogi. You have read the story, now practise to get direct experience.