A Course in Miracles (also called ACIM or perhaps the Course) is usually a 1976 guide by Helen Schucman. The underlying premise is the fact the best "wonder" is the act of just getting a complete "consciousness of affection's presence" in anyone's lifetime. (Only God is serious. The rest is https://www.youtube.com/channel/UCXpL4OXSmktqlP6_S5p5jIQ