At the core of A Program in Wonders is a non-denominational method of spirituality that encourages students to question their preconceived notions about fact, the self, and the world. The text is divided into three elements: the Text, the Book for Pupils, and the Handbook for Educators, each offering a different perception on the material presented. The key teachings of ACIM could be distilled into many key principles.

Among the central styles of ACIM is the thought of forgiveness. The Program shows that forgiveness is not merely pardoning some body for their wrongdoings, but instead, it is the recognition that there's nothing a course in miracles online to forgive. It asserts that what we understand as wrongdoings are finally the consequence of our own misperceptions and projections. In flexible the others, we're, actually, forgiving ourselves. ACIM emphasizes that forgiveness is really a road to inner peace and liberation from the burdens of resentment and anger.

Still another elementary concept of A Class in Wonders may be the indisputable fact that the bodily earth is an illusion. It posits our sensory experiences are unreliable signs of reality and that correct belief can only just be achieved through a shift in consciousness. The Class distinguishes involving the "real world," which really is a state of peace and oneness beyond the product region, and the "ego world," characterized by concern, divorce, and conflict. Based on ACIM, our primary function would be to wake from the dream of the confidence world and go back to the awareness of our divine nature.

ACIM also presents the idea of the Holy Nature as helpful information and instructor within the individual. This spiritual presence is observed as the foundation of enthusiasm and knowledge, helping us make possibilities that cause people closer to truth and far from illusion. The Program teaches that through our readiness to listen to the Holy Spirit's advice, we can access a further knowledge of our purpose and the way to healing.