2000 years back, we didn’t have Sigmund Freud. We didn’t have these teachings with regard to the unconscious guilt, protection mechanisms, the ego, and the like. A Course in Miracles employs 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