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