Followers of the early-20th-century "New Age" philosophy of New Thought believed they could learn the secrets of mind over matter, and one of their most influential teachers-enormously popular writer and editor William Walker Atkinson, writing pseudonymously here-revealed to them, in this 1904 work, the teachings of Hatha Yoga. His lessons cover: . the body's Vital Force . the laboratory of the body . how what we eat impacts the "life fluid" of the blood . the yogi's approach to food and eating . the yogi theory of the "prana absorption" of nutrients . mastering "yogi breathing" . harnessing "pranic energy" . rules for relaxation . and much more. ALSO AVAILABLE FROM COSIMO: Yogi Ramacharaka's Series of Lessons in Gnani Yoga and Series of Lessons in Raja Yoga. American writer WILLIAM WALKER ATKINSON (1862-1932) was editor of the popular magazine New Thought from 1901 to 1905, and editor of the journal Advanced Thought from 1916 to 1919. He authored dozens of New Thought books under numerous pseudonyms, some of which are likely still unknown today, including "Yogi Ramacharaka" and "Theron Q. Dumont."