The Yogi Philosophy may be divided into several great branches, or fields. What is known as "Hatha Yoga" deals with the physical body and its control; its welfare; its health; its preservation; its laws, etc. What is known as "Raja Yoga" deals with the Mind; its control; its development; its unfoldment, etc. What is known as "Bhakti Yoga"deals with the Love of the Absolute--God. What is known as "Gnani Yoga" deals with the scientific and intellectual knowing of the greatquestions regarding Life and what lies back of Life--the Riddle of the Universe.Each branch of Yoga is but a path leading toward the one end--unfoldment, development, and growth. He who wishes first to develop, control and strengthen his physical body so as to render it a fit instrument of the Higher Self, follows the path of "Hatha Yoga." He who would develop his will-power and mental faculties, unfolding the inner senses, and latent powers, follows the path of "Raja Yoga." He who wishes to develop by "knowing"--by studying the fundamental principles, and the wonderful truths underlying Life, follows the path of "Gnani Yoga." And he who wishes to grow into a union with the One Life by the influence of Love, he follows the path of "Bhakti Yoga."