2000 decades in the past, we didn’t have Sigmund Freud. We didn’t have these teachings concerning the unconscious guilt, defense mechanisms, the Moi, etc. A Course in Miracles makes use of the teachings of psychology, the teachings and terminology of training, and it also works by using Christian terminology. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw