The roots of A Class in Miracles could be followed back again to the cooperation between two people, Helen Schucman and Bill Thetford, equally of whom were distinguished psychologists and researchers. The course's inception occurred in the first 1960s when Schucman, who was a clinical and research psychologist at Columbia University's School of Physicians and Surgeons, started to experience a series of inner dictations. She described these dictations as originating from an internal voice that determined itself as Jesus Christ. Schucman originally resisted these experiences, but with Thetford's support, she started transcribing the messages she received.

Over a period of eight years, Schucman transcribed what might become A Program in Wonders, amounting to three amounts: the Text, the Workbook for Pupils, and the Information for Teachers. The Text sits out the theoretical foundation of the program, elaborating on the key acim  concepts and principles. The Workbook for Students includes 365 lessons, one for each time of the year, developed to guide the audience through a everyday exercise of using the course's teachings. The Guide for Teachers offers more guidance on how to realize and show the rules of A Course in Miracles to others.

One of the main themes of A Class in Wonders is the idea of forgiveness. The program teaches that correct forgiveness is the key to internal peace and awakening to one's heavenly nature. Based on their teachings, forgiveness is not simply a ethical or ethical training but a fundamental shift in perception. It involves making go of judgments, grievances, and the understanding of crime, and instead, seeing the entire world and oneself through the contact of enjoy and acceptance. A Class in Wonders highlights that correct forgiveness leads to the recognition that people are all interconnected and that separation from each other is an illusion.

Another significant facet of A Class in Miracles is their metaphysical foundation. The course gift suggestions a dualistic see of fact, distinguishing between the ego, which represents divorce, concern, and illusions, and the Sacred Spirit, which symbolizes enjoy, truth, and religious guidance. It shows that the confidence is the foundation of enduring and struggle, as the Sacred Soul provides a pathway to therapeutic and awakening. The goal of the program is to greatly help individuals surpass the ego's confined perception and align with the Holy Spirit's guidance.