Modern medical science and the ancient writings are as one on the importance of correct breathing as an aid to longevity and emotional stability. Unfortunately, this seemingly simple act - breathing - is something we all perform unconsciously, and few of us breathe correctly. In this classic book (first published in 1905) Yogi Ramacharaka provides a complete manual of Oriental breathing techniques, and reveals their associated benefits in physical, mental, psychic and spiritual development. If 'to breathe is to live', then this guide to yogic breath-control must be required reading for all who aspire to a 'healthy mind in a healthy body'.