The beginnings of A Class in Miracles may be followed back again to the venture between two people, Helen Schucman and William Thetford, equally of whom were outstanding psychologists and researchers. The course's inception happened in the first 1960s when Schucman, who had been a clinical and study psychologist at Columbia University's University of Physicians and Surgeons, began to see some internal dictations. She explained these dictations as coming from an inner style that discovered it self as Jesus Christ. Schucman initially resisted these activities, but with Thetford's inspiration, she began transcribing the messages she received.

Over an amount of eight years, Schucman transcribed what would become A Class in Miracles, amounting to three quantities: the Text, the Book for Students, and the Information for Teachers. The Text lays out the theoretical foundation of the course, acim on the core concepts and principles. The Workbook for Pupils contains 365 lessons, one for every single time of the season, made to guide the audience through a day-to-day practice of applying the course's teachings. The Manual for Educators provides further guidance on how to understand and train the concepts of A Course in Miracles to others.

Among the central styles of A Program in Miracles is the idea of forgiveness. The class teaches that correct forgiveness is the main element to internal peace and awareness to one's heavenly nature. According to their teachings, forgiveness isn't merely a ethical or moral practice but a essential change in perception. It involves letting get of judgments, issues, and the perception of sin, and alternatively, viewing the world and oneself through the lens of love and acceptance. A Program in Miracles highlights that true forgiveness contributes to the recognition that individuals are all interconnected and that separation from each other can be an illusion.