From the mental standpoint, the origins of ACIM raise issues about its validity. Helen Schucman, the primary scribe of the writing, stated that the words were formed to her by an inner style she determined as Jesus. This technique of receiving the text through inner dictation, known as channeling, is often achieved with skepticism. Critics disagree that channeling can be recognized as a mental sensation rather than true religious revelation. Schucman himself was a medical psychologist, and some declare that the voice she heard may have been a manifestation of her unconscious brain rather than an additional heavenly entity. Moreover, Schucman expressed ambivalence about the work and its sources, sometimes asking its authenticity herself. That ambivalence, coupled with the method of the text's reception, casts doubt on the legitimacy of ACIM as a divinely inspired scripture.

This content of ACIM also attracts scrutiny from a philosophical angle. The class shows that the planet we comprehend with this senses is definitely an illusion and that our correct truth lies beyond that physical realm. This idealistic view, which echoes particular Eastern philosophies, problems the materialistic and scientific foundations of American thought. Experts disagree that the declare that the physical earth can be an dream is not substantiated by empirical evidence and works table to the clinical method, which utilizes visible and measurable phenomena. The thought of an illusory world might be persuasive as a metaphor for the distortions of belief brought on by the vanity, but as a literal assertion, it lacks the empirical support required to certainly be a legitimate illustration of reality.

Furthermore, the realistic software of ACIM's teachings could be problematic. The course advocates for a radical kind of forgiveness, indicating that all issues are illusions and should really be ignored in support of knowing the natural unity of most beings. While the practice of forgiveness can indeed be therapeutic and transformative, ACIM's strategy may cause people to a course in miracles genuine emotions and ignore true injustices. By mounting all bad experiences as illusions developed by the vanity, there's a danger of minimizing or invalidating the existed activities of suffering and trauma. That perception can be particularly dangerous for people working with critical issues such as punishment or oppression, as it can decrease them from seeking the necessary support and interventions.

Another place of argument is the way in which ACIM has been promoted and commercialized. Since their book, ACIM has spawned a significant industry of workshops, seminars, and supplementary materials. Critics disagree that this commercialization undermines the religious reliability of the teachings, turning what's proposed to become a sacred text into a profit-driven enterprise. The expansion of ACIM-related products and solutions has led some to issue the motivations behind their promotion and the authenticity of people who declare to teach their principles. That commercial part can produce a buffer to genuine spiritual exploration, as persons may possibly become more focused on buying another book or participating another seminar as opposed to interesting deeply with the teachings themselves.