Mark Mandemaker is an ecommerce entrepreneur and self-development author. His first book Nondualism: Merging psychology, spirituality and philosophy (2018) is a multidisciplinary study where the concept of the Ego Migration is introduced which reveals how the mind alters its range of consciousness. The book links the Ego Migration with the work of Sigmund Freud’s ego defense mechanisms, Carl Jung’s individuation process and Wilhelm Reich’s character armoring. In 2019, a second updated and expanded edition of Nondualism: Merging psychology, spirituality and philosophy was written by the author. Mandemaker is currently writing a followup book which will focus more on Carl Jung’s collective unconscious. Nondualism: Merging Psychology, Spirituality and Philosophy first chapter excerpt video https://www.youtube.com/watch?v=2ltF6... Instagram: @nondualismbook