Yoga is divided into several branches, which range from that which shows the control of the body, compared to that which teaches the attainment of the highest spiritual advancement. In the work we will not go into the higher stages of the topic, except when the ‘Science of Breathing’ details upon the same. The ‘Technology of Breathing’ touches Yoga at many factors, and although chiefly worried about the advancement and control of the physical, has also its psychic side, as well as gets into the field of spiritual about Research of Breath advancement. In India there are excellent schools of Yoga exercises, comprising a large number of the leading minds of this great country. The Yoga philosophy is the rule of life for many individuals. The pure Yogi teachings, however, are given and then the few, the masses being satisfied with the crumbs which fall from your tables from the informed classes, the Oriental custom in this respect becoming opposed to that of the Western world. But Western suggestions are starting to possess their effect even in the Orient, and teachings that have been once given only to the few are actually freely offered to any who are ready to receive them. The East and the Western world are growing closer jointly, and both profiting from the close get in touch with, each influencing the additional. The Hindu Yogis have generally paid great focus on the Research of Breathing, for reasons which will be apparent to the student who reads this reserve. Many Western authors have handled upon this phase from the Yogi teachings, but we believe that it has been reserved for the author of this function to provide the Western college student, in concise form and simple language, the underlying concepts of the Yogi Research of Breath, together with many of the preferred Yogi breathing exercises and methods. We have given the Traditional western idea as well as the Oriental, showing how one dovetails in to the other. We have used the ordinary English terms, almost entirely, avoiding the Sanskrit conditions, so complicated to the common Western reader.