Another fundamental principle of A Program in Wonders is the idea that the physical world can be an illusion. It posits our sensory activities are unreliable indications of truth and that true perception can just only be achieved through a change in consciousness. The Program distinguishes involving the "real world," which really is a state of peace and oneness beyond the substance region, and the "pride earth," indicated by anxiety, divorce, and conflict. According to ACIM, our major purpose is always to wake from the desire of the ego world and go back to the consciousness of our divine nature.

ACIM also introduces the notion of the Sacred Heart as helpful information and instructor within the individual. This acim spiritual existence is observed as the foundation of creativity and knowledge, helping us produce choices that cause people closer to truth and from illusion. The Program teaches that through our readiness to hear the Sacred Spirit's advice, we could access a deeper knowledge of our function and the road to healing.

The Workbook for Pupils in A Program in Miracles contains 365 classes, one for every time of the year. These instructions are created to support students internalize the teachings and use them with their day-to-day lives. They frequently contain meditative and contemplative workouts, affirmations, and reflections on the concepts presented in the text. The goal of these daily lessons is to change the student's perception and attitude slowly, leading them towards a situation of true forgiveness, inner peace, and religious awakening.

The Manual for Teachers, the next component of ACIM, is aimed at those individuals who have embraced the maxims of the Class and feel required to share them with others. It gives advice on the characteristics of a true instructor of Lord, focusing characteristics such as for instance persistence, trust, and an start heart. It acknowledges the difficulties and obstacles one might experience while teaching the Course and presents insights on how to steer them.