At the primary of A Course in Miracles is really a non-denominational method of spirituality that encourages pupils to question their preconceived notions about fact, the self, and the world. The writing is divided in to three areas: the Text, the Workbook for Students, and the Guide for Educators, each offering a specific perception on the product presented. The primary teachings of ACIM may be distilled in to a few key principles.

One of the main themes of ACIM is the concept of forgiveness. The Program shows that forgiveness isn't just pardoning some body for their wrongdoings, but rather, it's the acceptance that there's nothing to forgive. It asserts that what we understand as wrongdoings are finally the a course in miracles  of our personal misperceptions and projections. In forgiving the others, we're, in reality, forgiving ourselves. ACIM highlights that forgiveness is just a way to internal peace and liberation from the burdens of resentment and anger.

Another elementary concept of A Program in Miracles could be the idea that the physical world is an illusion. It posits that our physical experiences are unreliable indications of reality and that correct understanding can just only be performed through a change in consciousness. The Course distinguishes between the "real life," which is a state of peace and oneness beyond the product kingdom, and the "pride world," known by anxiety, divorce, and conflict. Based on ACIM, our primary purpose is to wake from the dream of the pride earth and return to the attention of our divine nature.

ACIM also introduces the idea of the Holy Spirit as helpful tips and teacher within the individual. That religious presence is observed as the foundation of motivation and knowledge, helping us make choices that lead us nearer to truth and away from illusion. The Class teaches that through our willingness to hear the Holy Spirit's advice, we are able to accessibility a greater comprehension of our function and the path to healing.