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