At the primary of A Class in Wonders is really a non-denominational approach to spirituality that encourages pupils to problem their preconceived notions about reality, the self, and the world. The text is divided in to three elements: the Text, the Book for Students, and the Information for Educators, each offering a specific perception on the material presented. The key teachings of ACIM may be distilled into several key principles.

One of the main subjects of ACIM is the concept of forgiveness. The Class shows that forgiveness isn't merely pardoning some one due to their wrongdoings, but instead, it's the recognition that there surely is nothing to a course in miracles forgive. It asserts that what we see as wrongdoings are ultimately the result of our own misperceptions and projections. In forgiving others, we're, in reality, forgiving ourselves. ACIM highlights that forgiveness is just a road to inner peace and liberation from the burdens of resentment and anger.

Still another basic concept of A Program in Miracles may be the proven fact that the physical world can be an illusion. It posits our sensory experiences are unreliable signs of fact and that correct understanding can only just be performed through a change in consciousness. The Program distinguishes involving the "real world," which is really a state of peace and oneness beyond the substance kingdom, and the "vanity world," characterized by concern, separation, and conflict. In accordance with ACIM, our main purpose would be to wake from the desire of the vanity earth and return to the attention of our divine nature.

ACIM also introduces the thought of the Holy Spirit as helpful tips and instructor within the individual. This religious existence is seen as the source of motivation and wisdom, helping people produce choices that cause us nearer to reality and far from illusion. The Course shows that through our willingness to listen to the Sacred Spirit's guidance, we are able to access a further understanding of our function and the path to healing.