Forgiveness keeps a pivotal role in the teachings of ACIM. Unlike main-stream notions of forgiveness, which often involve pardoning the perceived wrongdoings of the others, ACIM's forgiveness is a procedure of publishing judgments and grievances used against oneself and others. It is just a acceptance that the perceived sins and problems are seated in the illusions of the confidence, and through forgiveness, you can see beyond these illusions to the natural purity and divinity in every being. ACIM teaches that forgiveness is just a path to internal peace and the important thing to undoing the ego's hang on the mind.

The Book for Pupils, comprising 365 lessons, is a practical guide built to cause the scholar through a major process. Each session focuses on a particular concept, guiding the practitioner to apply the teachings inside their daily lives. The instructions cover a wide variety of issues, including a course in miracles, forgiveness, love, and the nature of reality. The repeated character of the Workbook is intentional, reinforcing the idea that regular training is required for the transformation of consciousness.

A Course in Wonders also introduces the idea of the Holy Heart as a guide and intermediary involving the egoic brain and the true Self. The Holy Soul is represented as a supportive and nonjudgmental inner voice that assists people reinterpret their activities and perceptions in stance with truth. ACIM encourages a continuing talk with the Sacred Heart, seeking advice and knowledge in most aspects of life.

Among the special facets of ACIM is its usage of Christian terminology and symbolism, which can initially lead some to label it as a Christian text. But, the class transcends conventional spiritual boundaries and addresses to the universal principles of spirituality. ACIM encourages people from all faiths (or none) to set about a journey of self-discovery and internal transformation, focusing personal experience around dogma.