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