From the emotional perspective, the origins of ACIM increase issues about their validity. Helen Schucman, the principal scribe of the writing, said that the words were formed to her by an inner style she recognized as Jesus. This technique of receiving the writing through inner dictation, known as channeling, is frequently met with skepticism. Experts disagree that channeling could be understood as a mental phenomenon rather than authentic spiritual revelation. Schucman himself was a scientific psychologist, and some claim that the style she seen might have been a manifestation of her unconscious mind as opposed to an additional divine entity. Furthermore, Schucman expressed ambivalence about the job and its roots, occasionally questioning its reliability herself. This ambivalence, along with the method of the text's party, portrays uncertainty on the legitimacy of ACIM as a divinely influenced scripture.

The information of ACIM also invites scrutiny from the philosophical angle. The class shows that the entire world we perceive with this senses is an impression and our correct fact lies beyond that bodily realm. That idealistic see, which echoes particular Western ideas, challenges the materialistic and scientific foundations of david hoffmeister  Western thought. Experts fight that the claim that the physical earth can be an dream is not substantiated by scientific evidence and operates counter to the scientific approach, which depends on visible and measurable phenomena. The idea of an illusory earth may be compelling as a metaphor for the distortions of notion brought on by the ego, but as a literal assertion, it lacks the empirical help required to certainly be a valid representation of reality.

Moreover, the practical application of ACIM's teachings may be problematic. The class advocates for a significant type of forgiveness, suggesting that all grievances are illusions and must certanly be ignored in favor of knowing the inherent unity of most beings. As the exercise of forgiveness can certainly be therapeutic and major, ACIM's approach might cause persons to suppress legitimate emotions and dismiss real injustices. By surrounding all negative activities as illusions created by the ego, there is a threat of reducing or invalidating the lived experiences of suffering and trauma. That perception may be specially hazardous for people dealing with significant problems such as abuse or oppression, as it might decrease them from seeking the mandatory support and interventions.

Another stage of argument is the way in which ACIM has been marketed and commercialized. Since their book, ACIM has spawned a substantial industry of workshops, seminars, and supplementary materials. Experts argue that commercialization undermines the religious reliability of the teachings, turning what is purported to be always a holy text into a profit-driven enterprise. The expansion of ACIM-related services and products and services has light emitting diode some to question the motivations behind its campaign and the reliability of those who claim to show its principles. That commercial element can make a barrier to genuine spiritual exploration, as individuals may be more centered on getting the following guide or participating another course rather than engaging profoundly with the teachings themselves.