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