A Course in Miracles (also referred to as ACIM) is often a 1976 e-book by Helen Schucman. The underlying premise is that the greatest "wonder" is the act of only attaining a full "recognition of love's existence" in a person's daily life. Advanced non-dual teachings from A Course in Miracles https://www.youtube.com/watch?v=RSlwOZLlUGg