The cult of the Kanphat a Yogis is a definite unit within Hinduism; but the ideas and practices of the sect reach a much wider distribution than the order. In this study of these Yogic what may seem like undue attention is given to legend and folklore in general, and to the description of institutions, but this has been necessary in order to create the proper background for the understanding of the special Yoga of the sect. The study has been carried on in the midst of regular tasks, bath in India and in this country, over a long period of time. A good deal of the data supplied by others has been checked as the Author has met with Yogis in many places, and with some Gorakhnathis many time.