Synopsis Religion (dharma) basically aims at granting excellent ecstasy and bliss to the jivas. The way leading to this high and noble aim of life is constituted by Right Faith, Right Knowledge and Right Conduct, which imply an attitude of mind, a comprehension of the necessary principles and an observance of a course of discipline repectively. This represents, in a nutshell, the essence of the Science of Jain Yoga, a gift of which is given by Acharya Amitagati to the soulseeking novices through his highly esteemedd Yogasara-prabhrta. The Acharya follows the traditional plan of dealing with the seven principles (Sapta tattva) of Jaina Philosophy but with a special emphasis on the redemption and uplift of the jivas from the labyrinths of samsara to the perfection and purity of moksa. The English rendering and annotation of this valuable work by Dr. S.C. Jain certainly enhances the import of the theme of the original Sanskrit work.