The origins of A Class in Wonders could be followed back to the venture between two people, Helen Schucman and William Thetford, both of whom were prominent psychologists and researchers. The course's inception happened in early 1960s when Schucman, who was simply a scientific and research psychologist at Columbia University's School of Physicians and Surgeons, started to have some internal dictations. She explained these dictations as via an internal voice that discovered itself as Jesus Christ. Schucman originally resisted these activities, but with Thetford's inspiration, she started transcribing the messages she received.

Around an amount of eight years, Schucman transcribed what can become A Class in Miracles, amounting to three sizes: the Text, the Workbook for Students, and the Manual for Teachers. The Text lies out the theoretical base a course in miracles of the program, elaborating on the key concepts and principles. The Workbook for Pupils includes 365 lessons, one for every time of the year, developed to steer the reader by way of a daily training of using the course's teachings. The Handbook for Educators provides further advice on how best to understand and train the maxims of A Class in Wonders to others.

Among the key subjects of A Course in Wonders is the idea of forgiveness. The course teaches that true forgiveness is the key to inner peace and awakening to one's heavenly nature. Based on their teachings, forgiveness isn't merely a moral or ethical practice but a simple change in perception. It involves making move of judgments, issues, and the notion of failure, and alternatively, viewing the entire world and oneself through the lens of enjoy and acceptance. A Program in Miracles highlights that correct forgiveness leads to the recognition that individuals are typical interconnected and that separation from each other can be an illusion.

Still another substantial part of A Course in Wonders is their metaphysical foundation. The class presents a dualistic view of reality, distinguishing between the ego, which shows separation, concern, and illusions, and the Holy Nature, which symbolizes love, truth, and religious guidance. It shows that the pride is the origin of suffering and conflict, as the Holy Heart offers a pathway to healing and awakening. The target of the program is to greatly help individuals transcend the ego's restricted perspective and align with the Sacred Spirit's guidance.