At the primary of A Class in Miracles is a non-denominational approach to spirituality that encourages pupils to problem their preconceived notions about truth, the home, and the world. The text is divided into three components: the Text, the Book for Students, and the Handbook for Teachers, each offering a distinct perspective on the substance presented. The key teachings of ACIM can be distilled in to a few crucial principles.

One of the main themes of ACIM is the thought of forgiveness. The Class teaches that forgiveness isn't just pardoning some body for their wrongdoings, but instead, it is the acceptance that there surely is nothing to forgive. It asserts that what we perceive as wrongdoings are ultimately the result of our personal misperceptions and projections. In forgiving others, we're, actually, forgiving ourselves. ACIM emphasizes that forgiveness is really a path to internal peace and liberation from the burdens of resentment and anger.

Another fundamental principle of A Course in Miracles could be the indisputable fact that the physical world can be an illusion. It posits which our sensory experiences are unreliable signs of truth and that correct understanding can only be achieved via a change in  acim consciousness. The Program distinguishes involving the "real-world," which is really a state of peace and oneness beyond the product region, and the "vanity world," known by anxiety, separation, and conflict. Based on ACIM, our principal purpose is to awaken from the desire of the pride earth and go back to the recognition of our heavenly nature.

ACIM also introduces the thought of the Holy Soul as a guide and teacher within the individual. This spiritual existence is observed as the source of enthusiasm and knowledge, supporting us produce choices that cause us closer to reality and away from illusion. The Course shows that through our willingness to listen to the Sacred Spirit's guidance, we can entry a deeper knowledge of our purpose and the path to healing.