Source : Ravi Ravindra (2009). “The Wisdom of Patañjali's Yoga Sutras: A New Translation and Guide”
Ravi Ravindra
Carl Jung
Psychiatrist
G. I. Gurdjieff
Teacher
Jacob Needleman
Philosopher
Maurice Nicoll
Psychiatrist
Rene Daumal
Writer
Robert S. de Ropp
Author