2000 yrs ago, we didn’t have Sigmund Freud. We didn’t have every one of these teachings about the unconscious guilt, defense mechanisms, the ego, etc. A Course in Miracles utilizes the teachings of psychology, the teachings and terminology of training, and In addition it takes advantage of Christian terminology. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw