Mystics
Fox, Matthew. Breakthrough: Meister Eckhart's Creation spirituality in New Translation. New York: Doubleday, 1980.
Harvey, Andrew. The Return of the Mother. Berkeley, California: Frog, Ltd., 1995.
Harvey, Andrew: The Way of Passion: A Celebration of Rumi. Berkeley, California: Frog, Ltd., 1994.
Sri Aurobindo. Letters on Yoga (I, II, III). Pondicherry, India: Sri Aurobindo Ashram, 1970.
Sri Aurobindo. The Mother. Twin Lakes, Wisconsin: Lotus Light Publications, 1994.
