The ideal book for students of Taoist Esoteric Yoga. The somewhat technical and advanced meditative and chi development exercises come with comprehensive explanations of the "hows" and "whys" behind these practices. Not for the faint of heart, these exercises require practice and perseverance, yet the benefits are well worth the struggle. The benefits one may experience include alleviating back and shoulder pain, improving day-to-day moods, and a healthier sexual life.