The teachings on the Course are non-dualistic teachings. Should you go back into ancient China or back into India, you would have heard about Advaita Vedanta. Advaita really signifies “not two,” and that's a means of referring to The very fact that there is a oneness which connects us all. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw