The teachings in the Course are non-dualistic teachings. In case you return into historical China or back again into India, you might have heard about Advaita Vedanta. Advaita in fact signifies “not two,” and that's a strategy for speaking about the fact that there's a oneness which connects us all. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw