Among the key themes of ACIM is the concept of forgiveness. The Course shows that forgiveness isn't merely pardoning some one for his or her wrongdoings, but alternatively, it's the acceptance that there is nothing to forgive. It asserts that what we understand as wrongdoings are fundamentally the result of our personal misperceptions and projections. In forgiving others, we're, in fact, forgiving ourselves. ACIM stresses that forgiveness is a way to inner peace and liberation from the burdens of resentment and anger.

Still another fundamental concept of A Program in Miracles is the proven fact that the physical earth is definitely an illusion. It posits our physical experiences are unreliable signals of truth and that true notion can only just be achieved through a change in a course in miracles . The Program distinguishes between the "real-world," which is a state of peace and oneness beyond the product sphere, and the "confidence earth," characterized by fear, separation, and conflict. According to ACIM, our main function is to wake from the desire of the pride world and come back to the consciousness of our divine nature.

ACIM also presents the notion of the Holy Soul as helpful tips and teacher within the individual. That spiritual presence is seen as the foundation of motivation and knowledge, helping people produce possibilities that lead us nearer to truth and far from illusion. The Course shows that through our willingness to be controlled by the Holy Spirit's advice, we can accessibility a further comprehension of our purpose and the path to healing.

The Workbook for Pupils in A Course in Wonders includes 365 instructions, one for every time of the year. These classes are made to support pupils internalize the teachings and use them to their daily lives. They frequently contain meditative and contemplative workouts, affirmations, and reflections on the ideas presented in the text. The purpose of these everyday instructions is always to shift the student's understanding and attitude steadily, leading them towards circumstances of true forgiveness, internal peace, and religious awakening.