The sources of A Course in Miracles can be followed back again to the cooperation between two persons, Helen Schucman and William Thetford, both of whom were outstanding psychologists and researchers. The course's inception occurred in the first 1960s when Schucman, who was a scientific and research psychologist at Columbia University's University of Physicians and Surgeons, started to experience a series of internal dictations. She explained these dictations as via an interior voice that identified itself as Jesus Christ. Schucman initially resisted these experiences, but with Thetford's inspiration, she began transcribing the communications she received.

Over a period of eight decades, Schucman transcribed what would become A Course in Miracles, amounting to three sizes: the Text, the Book for Pupils, and the Handbook acim for Teachers. The Text sits out the theoretical basis of the course, elaborating on the core concepts and principles. The Book for Students contains 365 classes, one for every single time of the year, made to steer the reader by way of a daily training of using the course's teachings. The Guide for Educators provides further guidance on how best to realize and train the concepts of A Program in Miracles to others.

Among the key styles of A Class in Miracles is the idea of forgiveness. The course teaches that true forgiveness is the main element to inner peace and awareness to one's heavenly nature. Based on its teachings, forgiveness is not merely a ethical or honest practice but a elementary change in perception. It requires letting get of judgments, grievances, and the understanding of failure, and instead, seeing the world and oneself through the contact of love and acceptance. A Course in Wonders stresses that true forgiveness results in the acceptance that we are typical interconnected and that separation from one another is an illusion.

Still another significant aspect of A Program in Miracles is its metaphysical foundation. The class gifts a dualistic view of reality, unique between the confidence, which shows separation, fear, and illusions, and the Holy Soul, which symbolizes enjoy, reality, and religious guidance. It shows that the confidence is the origin of putting up with and conflict, whilst the Sacred Spirit provides a pathway to therapeutic and awakening. The goal of the course is to help persons transcend the ego's confined perspective and arrange with the Sacred Spirit's guidance.