Mouni Sadhu (17 August 1897 - 24 December 1971) is the pen name taken by Dymitr Sudowski an occultist, spiritual teacher and author. The word "mouni" means "silent" and "sadhu" refers to a wandering holy man. The author has studied many paths on the route to self-realization, from Western Magic and Hermeticism to the bhakti yoga teachings of Ramana Maharshi.
His writings are a wealth of practical and useful information and advice. His books cover subjects such as concentration, meditation, spiritual growth, the higher consciousness Theurgy and the Tarot.