A Course in Miracles (also generally known as ACIM or perhaps the Course) is actually a 1976 guide by Helen Schucman. The underlying premise is usually that the best "miracle" is the act of only getting an entire "consciousness of love's existence" in someone's lifetime. David Hoffmeister has traveled extensively https://www.youtube.com/channel/UCXpL4OXSmktqlP6_S5p5jIQ