The sources of A Class in Wonders can be tracked back again to the collaboration between two persons, Helen Schucman and Bill Thetford, equally of whom were outstanding psychologists and researchers. The course's inception occurred in the first 1960s when Schucman, who was a scientific and research psychiatrist at Columbia University's College of Physicians and Surgeons, started to see some internal dictations. She identified these dictations as coming from an inner voice that discovered itself as Jesus Christ. Schucman initially resisted these activities, but with Thetford's encouragement, she started transcribing the messages she received.

Around a period of eight decades, Schucman transcribed what would become A Program in Miracles, amounting to three volumes: the Text, the Workbook for Pupils, and the Handbook for Teachers. The Text sits out the  Um Curso em Milagres theoretical base of the course, elaborating on the primary methods and principles. The Workbook for Pupils contains 365 instructions, one for every single day of the season, designed to steer the reader via a everyday training of using the course's teachings. The Guide for Educators gives more advice on how to realize and teach the axioms of A Course in Miracles to others.

One of many central styles of A Program in Miracles is the idea of forgiveness. The class shows that correct forgiveness is the key to inner peace and awareness to one's divine nature. According to their teachings, forgiveness is not simply a ethical or moral exercise but a basic shift in perception. It requires letting get of judgments, grievances, and the notion of crime, and alternatively, seeing the planet and oneself through the lens of enjoy and acceptance. A Class in Miracles emphasizes that correct forgiveness results in the recognition that people are all interconnected and that separation from each other is an illusion.

Yet another substantial aspect of A Course in Wonders is their metaphysical foundation. The course presents a dualistic see of reality, distinguishing involving the ego, which represents divorce, fear, and illusions, and the Holy Nature, which symbolizes love, reality, and religious guidance. It shows that the vanity is the origin of suffering and struggle, whilst the Holy Heart supplies a pathway to therapeutic and awakening. The target of the class is to greatly help persons transcend the ego's confined perception and arrange with the Holy Spirit's guidance.