From the mental perspective, the sources of ACIM increase issues about its validity. Helen Schucman, the principal scribe of the text, said that the words were dictated to her by an interior voice she discovered as Jesus. This technique of getting the text through inner dictation, called channeling, is often met with skepticism. Experts fight that channeling may be understood as a mental trend rather than a authentic religious revelation. Schucman himself was a clinical psychologist, and some claim that the style she seen may have been a manifestation of her subconscious mind rather than an additional divine entity. Moreover, Schucman indicated ambivalence about the job and their sources, often pondering its reliability herself. That ambivalence, in conjunction with the technique of the text's party, casts doubt on the legitimacy of ACIM as a divinely influenced scripture.

The content of ACIM also invites scrutiny from the philosophical angle. The program teaches that the entire world we perceive with this senses is an illusion and which our true fact lies beyond that physical realm. That idealistic see, which echoes particular Eastern philosophies, difficulties the materialistic and scientific foundations of Western thought. Experts  david hoffmeister a course in miracles  fight that the declare that the physical world is definitely an illusion is not substantiated by scientific evidence and operates counter to the scientific approach, which depends on observable and measurable phenomena. The idea of an illusory world might be powerful as a metaphor for the distortions of perception caused by the vanity, but as a literal assertion, it lacks the empirical support necessary to be described as a valid representation of reality.

Moreover, the sensible software of ACIM's teachings could be problematic. The course advocates for a significant type of forgiveness, indicating that grievances are illusions and must be neglected in favor of realizing the natural unity of all beings. Whilst the practice of forgiveness can certainly be healing and transformative, ACIM's approach might cause people to suppress reliable feelings and dismiss true injustices. By mounting all bad activities as illusions developed by the confidence, there is a threat of reducing or invalidating the lived activities of putting up with and trauma. This perspective could be specially harmful for persons coping with serious dilemmas such as abuse or oppression, as it might discourage them from seeking the required help and interventions.

Another stage of argument is the way ACIM has been marketed and commercialized. Because its book, ACIM has spawned a substantial industry of workshops, seminars, and supplementary materials. Authorities disagree this commercialization undermines the religious reliability of the teachings, turning what's purported to be a holy text in to a profit-driven enterprise. The proliferation of ACIM-related services and products and companies has led some to question the motivations behind its promotion and the credibility of people who state to instruct its principles. This professional part can cause a barrier to genuine spiritual exploration, as people might be more focused on buying the next guide or attending the following seminar rather than interesting deeply with the teachings themselves.