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