Forgiveness keeps a essential position in the teachings of ACIM. Unlike old-fashioned notions of forgiveness, which often require pardoning the perceived wrongdoings of the others, ACIM's forgiveness is an activity of releasing judgments and grievances used against oneself and others. It is a acceptance that the perceived sins and problems are seated in the illusions of the ego, and through forgiveness, one can see beyond these illusions to the inherent innocence and divinity in every being. ACIM shows that forgiveness is a road to inner peace and the key to undoing the ego's hold on the mind.

The Workbook for Pupils, comprising 365 lessons, is a practical guide made to lead the scholar by way of a transformative process. Each lesson centers around a specific topic, guiding the practitioner to utilize the teachings within their daily lives. The instructions protect a acim range of topics, including perception, forgiveness, love, and the type of reality. The repetitive character of the Workbook is intentional, reinforcing the idea that consistent exercise is essential for the change of consciousness.

A Class in Wonders also introduces the thought of the Sacred Heart as a guide and intermediary involving the egoic mind and the true Self. The Holy Spirit is indicated as a loving and nonjudgmental inner voice that assists individuals reinterpret their experiences and perceptions in alignment with truth. ACIM encourages a constant conversation with the Holy Soul, seeking advice and wisdom in most facets of life.

One of the distinct aspects of ACIM is their use of Christian terminology and symbolism, which might initially lead some to classify it as a Christian text. But, the class transcends standard religious limits and speaks to the general rules of spirituality. ACIM encourages people from all faiths (or none) to set about a journey of self-discovery and inner transformation, emphasizing personal experience around dogma.