2000 many years in the past, we didn’t have Sigmund Freud. We didn’t have these teachings regarding the unconscious guilt, protection mechanisms, the ego, and so forth. A Course in Miracles uses the teachings of psychology, the teachings and terminology of instruction, and it also takes advantage of Christian terminology. https://www.youtube.com/channel/UCXpL4OXSmktqlP6_S5p5jIQ