From the emotional standpoint, the roots of ACIM raise issues about their validity. Helen Schucman, the principal scribe of the text, said that what were dictated to her by an interior style she identified as Jesus. This technique of obtaining the text through inner dictation, known as channeling, is often met with skepticism. Critics argue that channeling can be understood as a emotional phenomenon rather than real religious revelation. Schucman himself was a medical psychiatrist, and some declare that the voice she noticed could have been a manifestation of her subconscious brain as opposed to an additional heavenly entity. Additionally, Schucman indicated ambivalence about the task and its beginnings, occasionally wondering their authenticity herself. This ambivalence, in conjunction with the technique of the text's reception, portrays uncertainty on the legitimacy of ACIM as a divinely influenced scripture.

The content of ACIM also attracts scrutiny from a philosophical angle. The class shows that the entire world we see with our feelings can be an dream and that our correct truth lies beyond this bodily realm. This idealistic view, which echoes particular Eastern a course in miracles , problems the materialistic and empirical foundations of American thought. Experts disagree that the declare that the bodily world can be an illusion is not substantiated by scientific evidence and operates counter to the clinical strategy, which depends on visible and measurable phenomena. The idea of an illusory world may be powerful as a metaphor for the distortions of notion due to the vanity, but as a literal assertion, it lacks the empirical help required to be described as a valid illustration of reality.

Moreover, the realistic program of ACIM's teachings could be problematic. The class advocates for a radical type of forgiveness, suggesting that most grievances are illusions and ought to be overlooked in support of recognizing the natural unity of all beings. As the exercise of forgiveness may certainly be therapeutic and transformative, ACIM's approach may cause individuals to suppress reliable feelings and ignore true injustices. By mounting all bad activities as illusions produced by the ego, there's a danger of reducing or invalidating the existed experiences of suffering and trauma. This perception can be particularly harmful for people dealing with critical issues such as abuse or oppression, as it might discourage them from seeking the mandatory support and interventions.

Another point of argument is the way in which ACIM has been marketed and commercialized. Since their distribution, ACIM has spawned a substantial business of workshops, seminars, and supplementary materials. Critics fight that commercialization undermines the religious integrity of the teachings, turning what is supposed to be a sacred text in to a profit-driven enterprise. The expansion of ACIM-related products and services and solutions has light emitting diode some to question the motivations behind its campaign and the credibility of those who claim to teach their principles. This commercial element can produce a buffer to true spiritual exploration, as people may be much more focused on getting the following book or attending the following workshop as opposed to participating deeply with the teachings themselves.