From a psychological perspective, the roots of ACIM increase questions about its validity. Helen Schucman, the primary scribe of the text, claimed that the words were dictated to her by an internal voice she discovered as Jesus. This process of obtaining the text through inner dictation, called channeling, is usually achieved with skepticism. Experts fight that channeling may be recognized as a emotional sensation rather than authentic spiritual revelation. Schucman himself was a clinical psychologist, and some claim that the style she noticed could have been a manifestation of her subconscious mind rather than an external divine entity. Furthermore, Schucman indicated ambivalence about the job and its origins, often asking its authenticity herself. This ambivalence, in conjunction with the technique of the text's party, casts uncertainty on the legitimacy of ACIM as a divinely encouraged scripture.

The content of ACIM also encourages scrutiny from the philosophical angle. The class teaches that the world we see with this feelings is an illusion and which our correct reality lies beyond that bodily realm. That idealistic view, which echoes specific Western ideas, challenges the materialistic and scientific foundations of American thought. Authorities disagree that the a course in miracles  declare that the physical world is an dream is not substantiated by empirical evidence and operates counter to the clinical technique, which utilizes observable and measurable phenomena. The notion of an illusory world might be persuasive as a metaphor for the distortions of understanding due to the confidence, but as a literal assertion, it lacks the scientific help needed to be considered a legitimate representation of reality.

Moreover, the realistic request of ACIM's teachings can be problematic. The course advocates for a significant form of forgiveness, suggesting that grievances are illusions and must be ignored and only realizing the inherent unity of all beings. While the practice of forgiveness can indeed be therapeutic and transformative, ACIM's approach may lead people to restrain reliable emotions and ignore real injustices. By framing all bad experiences as illusions developed by the ego, there's a danger of reducing or invalidating the lived experiences of suffering and trauma. That perception may be specially hazardous for persons dealing with critical problems such as punishment or oppression, as it may suppress them from seeking the necessary support and interventions.

Yet another point of competition is just how ACIM has been promoted and commercialized. Because their book, ACIM has spawned a significant industry of workshops, seminars, and supplementary materials. Experts disagree that commercialization undermines the religious reliability of the teachings, turning what's purported to become a holy text in to a profit-driven enterprise. The expansion of ACIM-related products and services and services has light emitting diode some to issue the motivations behind their campaign and the authenticity of those that claim to show their principles. That professional element can cause a barrier to authentic religious exploration, as people may become more focused on purchasing another book or attending the next seminar as opposed to engaging profoundly with the teachings themselves.