A Course in Miracles (also called ACIM or perhaps the Course) is often a 1976 e-book by Helen Schucman. The underlying premise is that the greatest "wonder" would be the act of only getting a full "awareness of love's existence" in someone's daily life. They divided the Text into chapters https://nondualteacher.com/non-dual-awareness-a-course-in-miracles-acim/