The sources of A Course in Miracles can be traced back to the relationship between two people, Helen Schucman and William Thetford, equally of whom were distinguished psychologists and researchers. The course's inception occurred in the early 1960s when Schucman, who was a medical and research psychologist at Columbia University's College of Physicians and Surgeons, started to see a series of internal dictations. She explained these dictations as originating from an interior style that discovered it self as Jesus Christ. Schucman originally resisted these experiences, but with Thetford's encouragement, she began transcribing the communications she received.

Over a period of eight years, Schucman transcribed what might become A Course in Miracles, amounting to three volumes: the Text, the Book for Pupils, and the Manual for Teachers. The Text lays out the theoretical basis of the class, elaborating on the core ideas and acim. The Book for Pupils includes 365 lessons, one for every time of the season, made to steer the reader by way of a day-to-day practice of using the course's teachings. The Manual for Educators gives more advice on the best way to realize and teach the rules of A Course in Wonders to others.

One of the central subjects of A Course in Miracles is the idea of forgiveness. The class shows that true forgiveness is the main element to internal peace and awareness to one's divine nature. Based on their teachings, forgiveness is not simply a ethical or honest practice but a essential shift in perception. It involves letting get of judgments, grievances, and the understanding of crime, and alternatively, viewing the world and oneself through the lens of love and acceptance. A Program in Wonders highlights that true forgiveness results in the recognition that we are typical interconnected and that divorce from each other can be an illusion.

Still another significant part of A Program in Wonders is its metaphysical foundation. The class gifts a dualistic view of truth, distinguishing involving the vanity, which shows separation, anxiety, and illusions, and the Sacred Nature, which symbolizes love, reality, and religious guidance. It suggests that the pride is the foundation of putting up with and conflict, while the Holy Heart provides a pathway to healing and awakening. The target of the class is to simply help persons surpass the ego's restricted perception and align with the Sacred Spirit's guidance.