Course in Miracles
This is the output of a satanic self-delusion that has come through the occult process of meditation known as 'channelling' a communication process dominated by 'automatic handwriting' and occasionally through demonic forces speaking through a person in a self-induced trance or deep meditative state.
The author of this book is Helen Schucman (1908-1981) who wrote down the book with the help of William Thetford, based on what Schucman called an "inner voice" which she identified as Jesus, and which is identified at some points within the pages of the book as "Christ Jesus".