Philosophy and Methodology of Kriya Yoga
Autobiography of a Yogi (Reprint of the Philosophical library 1946 First Edition)
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Among them, I recommend Pandit’s Specific Principles of Kashmir Shaivism for the new student. More yogic works are Swami Lakshmanjoo’s Self Realisation and The Secret Supreme, Swami Chetanananda’s Dynamic Stillness I and II, and, of course, Siddha Meditation by Swami Muktananda.