The teachings on the Course are non-dualistic teachings. When you go back into historic China or back again into India, you would have heard about Advaita Vedanta. Advaita essentially implies “not two,” and that is a strategy for referring to the fact that there's a oneness which connects us all. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw