One of the central subjects of ACIM is the thought of forgiveness. The Course teaches that forgiveness is not just pardoning somebody due to their wrongdoings, but instead, it's the recognition that there is nothing to forgive. It asserts that what we perceive as wrongdoings are ultimately caused by our personal misperceptions and projections. In flexible others, we are, actually, flexible ourselves. ACIM emphasizes that forgiveness is just a road to internal peace and liberation from the burdens of resentment and anger.

Still another fundamental theory of A Class in Miracles is the proven fact that the physical world is an illusion. It posits which our physical activities are unreliable signs of fact and that correct perception can only just be performed by way of a shift in consciousness. The Program distinguishes between the "real world," which really is a state of peace and oneness a course in miracles the substance realm, and the "pride world," known by fear, separation, and conflict. Based on ACIM, our major function is always to wake from the dream of the vanity world and return to the understanding of our divine nature.

ACIM also introduces the thought of the Sacred Nature as helpful information and instructor within the individual. This spiritual presence is seen as the origin of creativity and knowledge, helping people make possibilities that cause people closer to reality and from illusion. The Program shows that through our willingness to hear the Holy Spirit's advice, we can entry a deeper knowledge of our purpose and the way to healing.

The Workbook for Students in A Program in Wonders contains 365 classes, one for every single time of the year. These lessons are created to support pupils internalize the teachings and use them to their daily lives. They usually contain meditative and contemplative workouts, affirmations, and insights on the methods presented in the text. The objective of these day-to-day classes would be to shift the student's perception and mindset steadily, leading them towards a state of true forgiveness, inner peace, and spiritual awakening.