2000 yrs back, we didn’t have Sigmund Freud. We didn’t have these teachings regarding the unconscious guilt, defense mechanisms, the ego, etc. A Course in Miracles works by using the teachings of psychology, the teachings and terminology of education and learning, and In addition it makes use of Christian terminology. https://www.youtube.com/channel/UCXpL4OXSmktqlP6_S5p5jIQ