References Welcome Etudes Traditionnelles Namj ud-Din Kubra Corbin, The Man of   Light Pir Vilayat Inayat Khan Awakening: A Sufi   Experience In Search of the   Hidden Treasure That Which Transpires   Behind That Which   Appears Dr. David Bohm Unfolding Meaning William C. Chittick The Sufi Path of   Knowledge Henri Corbin Creative Imagination Bhikhu Geshe Gyatso Clear Light of Bliss Muhyiuddin Ibn al-'Arabi The Wisdom of the   Prophets [Fusus   al-Hikam] Whoso Knoweth Himself,   from the Treatise   of Being Hazrat Inayat Khan Esoteric Papers Gathas Githa (I, II, III) Healing and the Mind   World In an Eastern Rose   Garden Mastery Through   Accomplishment Philosophy,   Psychology,   Mysticism Sangathas Sangithas Social Gathekas Spiritual Liberty Sufi Teachings Supplementary Papers The Alchemy of   Happiness The Art of Being and   Becoming The Awakening of the   Human Spirit The Bowl of Saki The Complete Sayings The Inner Life The Mysticism of Sound   and Music The Smiling Forehead The Soul, Whence and   Whither The Unity of Religious   Ideals Volume I: The Inner   Life Volume II: The   Mysticism of Sound Volume X: The Path of   Initiation Edited by Pirzade Zia Inayat Khan A Pearl In Wine M.R. Bawa Muhaiyaddeen Asma'ul Husna: The 99   Beautiful Names of   Allah Sufi Order International Introductory Pamphlet E.H. Whinfield Shabistari, Gulsham i   Raz: The Mystic   Rose Garden Hazrat Inayat Khan: The Mysticism of Sound and Music            Go back Mysticism, Psychology The Sufi knows of the past, present and future, and about all things in life, by being able to know the direction of sound. Every aspect of one's being in which sound manifests has a peculiar effect upon life, for the activity of vibrations has a special effect in every direction. The knower of the mystery of sound knows the mystery of the whole universe.—Hazrat Inayat Khan Published by Shambhala Publications