Come to a comprehensive knowledge of the metaphysics of the Course in Miracles via a mix of audio/video resources and Q&A dialogues with David Hoffmeister. Robert T. Carroll wrote which the teachings aren't initial but are culled from "several sources, east, and west". He adds that it's acquired elevated level https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw