2014 Reprint of Original 1925 Edition. Exact facsimile of the original edition, not reproduced with Optical Recognition Software. This edition reprints the first three lessons including 39 illustrations as outlined in the 1925 course on energization and will power. This work is the exercise book for those who enrolled in Yogananda's course at the Yogoda Sat-Sanga Society in Boston. Though later modified, these are the original first three lessons as Yogananda thought to his students. The book includes the exercises with diagrams and complete instructions as well as the first three written lessons.