2000 years ago, we didn’t have Sigmund Freud. We didn’t have all these teachings concerning the unconscious guilt, protection mechanisms, the ego, etc. A Course in Miracles utilizes the teachings of psychology, the teachings and terminology of education and learning, and In addition, it works by using Christian terminology. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw