A Course in Miracles is a spiritual self-study program that aims to help individuals achieve inner peace and personal transformation. It was written by Helen Schucman and Bill Thetford in the 1970s and consists of a text, a workbook for students, and a manual for teachers. The course emphasizes forgiveness, love, and the idea that the mind can change perceptions of reality. The teachings of A Course in Miracles are rooted in Christian principles but are presented in a non-denominational context. It encourages practitioners to shift their thinking from fear to love, promoting healing and understanding through the practice of forgiveness and the recognition of a shared spiritual identity.