There have been for ages past in India and other Oriental countries men who devoted their time and attention to the development of Man, physically, mentally and spiritually. The experience of generations of earnest seekers has been handed down for centuries from teacher to pupil, and gradually a definite Yogi science was built up. To these investigations and teachings was finally applied the term "Yogi," from the Sanscrit word "Yug," meaning "to join." From the same source comes the English word "yoke," with a similar meaning. Its use in connection with these teachings is difficult to trace, different authorities giving different explanations, but probably the most ingenious is that which holds that it is intended as the Hindu equivalent for the idea conveyed by the English phrase, "getting into harness," or "yoking up," as the Yogi undoubtedly "getsinto harness" in his work of controlling the body and mind by the Will.Table of ContentsI NDEX OF CHAPTERSI. SalaamII. "Breath Is Life"III. The Exoteric Theory of BreathIV. The Esoteric Theory of BreathV. The Nervous SystemVI. Nostril Breathing vs. Mouth BreathingVII. The Four Methods of RespirationVIII. How to Acquire the Yogi Complete BreathIX. Physiological Effect of the Complete BreathX. A Few Bits of Yogi LoreXI. The Seven Yogi Developing ExercisesXII. Seven Minor Yogi ExercisesXIII. Vibration and Yogi Rhythmic BreathingXIV. Phenomena of Yogi Psychic BreathingXV. More Phenomena of Yogi Psychic BreathingXVI. Yogi Spiritual Breathing