2018 Reprint of 1960 Edition. Full facsimile of the original edition, not reproduced with Optical Recognition software. Originally published in 1903, this is a manual of the philosophy of physical, mental and spiritual development by the intelligent control of the breath. Ramacharaka [William Walker Atkinson] was the author of several books on the subject of Eastern Philosophy and its practices. For thousands of years, yogis have believed that breath is the essential link between body and mind, energizing a subtle body which connects the physical and mental aspects of our being. In this book, Swami Rama explores the science of breath as the missing key to both physical health and the attainment of higher states of consciousness. Basic yogic breathing techniques are explained so that one can immediately begin working with the ancient science of breath.