2000 years ago, we didn’t have Sigmund Freud. We didn’t have each one of these teachings concerning the unconscious guilt, defense mechanisms, the ego, and so on. A Course in Miracles uses the teachings of psychology, the teachings and terminology of education, and it also takes advantage of Christian terminology. https://www.youtube.com/channel/UCXpL4OXSmktqlP6_S5p5jIQ