The origins of A Class in Wonders may be followed back again to the relationship between two persons, Helen Schucman and Bill Thetford, both of whom were outstanding psychologists and researchers. The course's inception happened in the first 1960s when Schucman, who was a scientific and research psychologist at Columbia University's College of Physicians and Surgeons, began to experience a series of internal dictations. She explained these dictations as coming from an interior voice that determined it self as Jesus Christ. Schucman initially resisted these experiences, but with Thetford's inspiration, she began transcribing the communications she received.

Over a period of seven years, Schucman transcribed what can become A Class in Miracles, amounting to three volumes: the Text, the Workbook for Students, and the Information for Teachers. The Text lies out the theoretical base of the course, elaborating on the core the christ and principles. The Book for Pupils includes 365 instructions, one for every day of the entire year, made to steer the audience via a daily practice of applying the course's teachings. The Manual for Teachers provides more advice on the best way to realize and show the axioms of A Program in Wonders to others.

One of many main themes of A Program in Wonders is the notion of forgiveness. The course teaches that correct forgiveness is the key to internal peace and awakening to one's divine nature. Based on their teachings, forgiveness isn't merely a ethical or moral training but a essential shift in perception. It involves making get of judgments, grievances, and the belief of sin, and alternatively, viewing the entire world and oneself through the lens of enjoy and acceptance. A Program in Wonders stresses that true forgiveness leads to the acceptance that we are interconnected and that separation from one another is an illusion.

Another significant part of A Course in Wonders is their metaphysical foundation. The class presents a dualistic see of reality, unique between the confidence, which represents divorce, fear, and illusions, and the Sacred Spirit, which symbolizes enjoy, reality, and religious guidance. It implies that the ego is the origin of enduring and struggle, while the Sacred Spirit provides a pathway to healing and awakening. The target of the course is to help people surpass the ego's limited perception and arrange with the Holy Spirit's guidance.