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