2000 a long time back, we didn’t have Sigmund Freud. We didn’t have all of these teachings with regard to 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 What's more, https://www.youtube.com/channel/UCXpL4OXSmktqlP6_S5p5jIQ