The beginnings of A Class in Wonders may be followed back to the collaboration between two individuals, Helen Schucman and William Thetford, both of whom were outstanding psychologists and researchers. The course's inception occurred in the early 1960s when Schucman, who was a scientific and study psychologist at Columbia University's School of Physicians and Surgeons, began to see a series of inner dictations. She explained these dictations as originating from an inner style that determined itself as Jesus Christ. Schucman initially resisted these experiences, but with Thetford's support, she began transcribing the communications she received.

Over a period of seven years, Schucman transcribed what would become A Class in Miracles, amounting to three sizes: the Text, the Book for Students, and the Guide for Teachers. The Text sits out the theoretical foundation of the program, elaborating on the key jesus gospel of love  and principles. The Workbook for Students contains 365 instructions, one for every single time of the season, developed to steer the reader via a daily training of using the course's teachings. The Information for Educators offers further advice on how to realize and teach the principles of A Program in Miracles to others.

One of many central themes of A Program in Miracles is the thought of forgiveness. The class shows that correct forgiveness is the key to inner peace and awakening to one's heavenly nature. In accordance with its teachings, forgiveness is not only a ethical or honest exercise but a essential shift in perception. It requires making get of judgments, grievances, and the perception of crime, and as an alternative, viewing the world and oneself through the contact of love and acceptance. A Program in Miracles emphasizes that true forgiveness contributes to the recognition that we are interconnected and that separation from one another can be an illusion.

Another substantial facet of A Class in Wonders is their metaphysical foundation. The course gift suggestions a dualistic see of reality, distinguishing between the pride, which shows separation, fear, and illusions, and the Holy Heart, which symbolizes enjoy, truth, and spiritual guidance. It suggests that the ego is the origin of suffering and conflict, whilst the Holy Spirit offers a pathway to healing and awakening. The goal of the class is to simply help persons surpass the ego's confined perspective and align with the Holy Spirit's guidance.