2000 years in the past, we didn’t have Sigmund Freud. We didn’t have these teachings in regards to the unconscious guilt, protection mechanisms, the Moi, and the like. A Training course in Miracles makes use of the teachings of psychology, the teachings and terminology of instruction, and In addition it employs Christian terminology. https://davidhoffmeister.com/david-hoffmeister-the-message/metaphysics-of-a-course-in-miracles/