The teachings of the Course are non-dualistic teachings. In case you go back into historical China or back again into India, you would've heard about Advaita Vedanta. Advaita basically means “not two,” and that's a technique for referring to The very fact that there's a oneness which connects us all. https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw