The teachings with the Course are non-dualistic teachings. For those who return into ancient China or again into India, you would have heard about Advaita Vedanta. Advaita basically usually means “not two,” and that's a strategy for referring to the fact that there's a oneness which connects us all. So, https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw