Forgiveness holds a critical role in the teachings of ACIM. Unlike mainstream notions of forgiveness, which regularly involve pardoning the observed wrongdoings of the others, ACIM's forgiveness is a process of issuing judgments and grievances held against oneself and others. It is really a acceptance that the observed sins and problems are rooted in the illusions of the vanity, and through forgiveness, one can see beyond these illusions to the natural purity and divinity in every being. ACIM teaches that forgiveness is really a way to internal peace and the important thing to undoing the ego's hold on the mind.

The Book for Students, comprising 365 classes, is a practical information built to cause the scholar by way of a major process. Each training centers around a certain topic, guiding the practitioner to utilize the teachings inside their everyday lives. The instructions ACIM a wide variety of issues, including perception, forgiveness, enjoy, and the character of reality. The repetitive nature of the Book is intentional, reinforcing the proven fact that regular practice is necessary for the transformation of consciousness.

A Class in Miracles also presents the concept of the Holy Soul as a guide and intermediary between the egoic mind and the real Self. The Holy Nature is portrayed as a supportive and nonjudgmental inner voice that helps people reinterpret their activities and perceptions in alignment with truth. ACIM encourages a continuing discussion with the Sacred Spirit, seeking guidance and wisdom in every areas of life.

Among the distinctive areas of ACIM is their utilization of Christian terminology and symbolism, that might originally cause some to sort it as a Religious text. But, the class transcends traditional religious boundaries and talks to the common concepts of spirituality. ACIM attracts individuals from all faiths (or none) to attempt a trip of self-discovery and inner change, emphasizing particular knowledge over dogma.