The sources of A Course in Wonders could be followed back again to the cooperation between two individuals, Helen Schucman and Bill Thetford, both of whom were distinguished psychologists and researchers. The course's inception happened in the first 1960s when Schucman, who was a clinical and study psychologist at Columbia University's School of Physicians and Surgeons, started to see a series of internal dictations. She described these dictations as originating from an internal voice that identified it self as Jesus Christ. Schucman initially resisted these experiences, but with Thetford's inspiration, she started transcribing the communications she received.

Around an amount of eight years, Schucman transcribed what can become A Class in Wonders, amounting to three amounts: the Text, the acim for Students, and the Guide for Teachers. The Text lays out the theoretical basis of the program, elaborating on the primary concepts and principles. The Workbook for Pupils contains 365 lessons, one for every day of the entire year, designed to steer the audience through a daily exercise of applying the course's teachings. The Handbook for Educators offers further guidance on how to realize and train the principles of A Program in Miracles to others.

Among the key subjects of A Class in Miracles is the idea of forgiveness. The course shows that correct forgiveness is the important thing to internal peace and awakening to one's heavenly nature. Based on its teachings, forgiveness isn't only a moral or honest training but a fundamental change in perception. It requires letting go of judgments, grievances, and the understanding of crime, and as an alternative, viewing the planet and oneself through the contact of enjoy and acceptance. A Program in Miracles emphasizes that correct forgiveness results in the recognition that we are interconnected and that divorce from each other is an illusion.

Yet another significant facet of A Class in Wonders is its metaphysical foundation. The program gifts a dualistic see of fact, unique between the ego, which represents separation, concern, and illusions, and the Sacred Spirit, which symbolizes enjoy, reality, and spiritual guidance. It suggests that the ego is the origin of putting up with and conflict, whilst the Holy Soul supplies a pathway to therapeutic and awakening. The goal of the class is to help individuals transcend the ego's confined perception and align with the Sacred Spirit's guidance.