The sources of A Class in Miracles may be tracked back to the relationship between two people, Helen Schucman and William Thetford, equally of whom were prominent psychologists and researchers. The course's inception happened in the first 1960s when Schucman, who was a medical and study psychiatrist at Columbia University's School of Physicians and Surgeons, started to see some inner dictations. She explained these dictations as via an internal voice that discovered it self as Jesus Christ. Schucman initially resisted these activities, but with Thetford's inspiration, she started transcribing the messages she received.

Around a period of eight decades, Schucman transcribed what might become A Course in Wonders, amounting to three volumes: the Text, the Book for Students, and the Manual for Teachers. The Text lays out the theoretical base of the program, elaborating on the primary methods and principles. The Workbook for Pupils contains 365 a course in miracles instructions, one for each time of the year, developed to guide the audience through a everyday exercise of using the course's teachings. The Manual for Educators provides further guidance on how best to understand and teach the rules of A Program in Miracles to others.

One of many main styles of A Class in Miracles is the idea of forgiveness. The class teaches that correct forgiveness is the important thing to inner peace and awakening to one's divine nature. In accordance with its teachings, forgiveness is not merely a ethical or ethical training but a fundamental shift in perception. It involves making go of judgments, issues, and the notion of sin, and instead, viewing the planet and oneself through the lens of enjoy and acceptance. A Class in Wonders stresses that true forgiveness leads to the acceptance that individuals are interconnected and that separation from one another can be an illusion.

Another significant aspect of A Program in Wonders is their metaphysical foundation. The program presents a dualistic view of truth, distinguishing between the ego, which represents divorce, concern, and illusions, and the Holy Heart, which symbolizes enjoy, reality, and religious guidance. It suggests that the vanity is the source of putting up with and conflict, whilst the Sacred Nature offers a pathway to healing and awakening. The goal of the class is to simply help people transcend the ego's restricted perception and arrange with the Sacred Spirit's guidance.