Yet another simple principle of A Course in Wonders is the idea that the bodily earth is definitely an illusion. It posits which our physical activities are unreliable signs of truth and that correct perception can only be achieved through a change in consciousness. The Course distinguishes between the "real world," which really is a state of peace and oneness beyond the product sphere, and the "vanity world," characterized by anxiety, divorce, and conflict. In accordance with ACIM, our primary function would be to wake from the dream of the confidence earth and go back to the awareness of our heavenly nature.

ACIM also presents the notion of the Sacred Heart as helpful tips and instructor within the individual. This religious presence is observed as the origin of enthusiasm and wisdom, supporting people produce a course in miracles that lead people closer to reality and far from illusion. The Course shows that through our willingness to be controlled by the Sacred Spirit's guidance, we could access a deeper understanding of our purpose and the path to healing.

The Book for Pupils in A Class in Wonders includes 365 instructions, one for every time of the year. These instructions are created to help students internalize the teachings and use them to their daily lives. They usually contain meditative and contemplative exercises, affirmations, and reflections on the concepts shown in the text. The objective of these everyday lessons is always to shift the student's understanding and mind-set gradually, leading them towards a situation of true forgiveness, internal peace, and spiritual awakening.

The Guide for Teachers, the next element of ACIM, is targeted at those who have embraced the maxims of the Course and feel compelled to fairly share them with others. It offers guidance on the faculties of a genuine teacher of Lord, focusing features such as patience, confidence, and an open heart. It acknowledges the challenges and limitations one might encounter while training the Course and offers insights on how to navigate them.