Yogi Swatmarama,Hans-Ulrich Rieker
Hans-Ulrich Rieker writes, "Yoga is the science of man and his potential. Yoga as a deadly serious business does not interest me. I want yoga to bring a deeper joy into my life." This book is an English translation of Rieker's German interpretation of ,Hatha Yoga Pradipika,, a classic esoteric handbook of kundalini yoga. 
Spirituality
Yoga of Light: Hatha-Yoga-Pradipika