From the psychological perspective, the origins of ACIM raise issues about their validity. Helen Schucman, the principal scribe of the writing, stated that what were dictated to her by an internal style she determined as Jesus. This process of receiving the writing through internal dictation, referred to as channeling, is usually met with skepticism. Experts argue that channeling could be recognized as a emotional phenomenon rather than genuine spiritual revelation. Schucman himself was a medical psychiatrist, and some suggest that the voice she heard may have been a manifestation of her subconscious mind rather than an external heavenly entity. Additionally, Schucman stated ambivalence about the work and their sources, sometimes questioning its credibility herself. This ambivalence, in conjunction with the method of the text's reception, portrays doubt on the legitimacy of ACIM as a divinely influenced scripture.

The content of ACIM also invites scrutiny from a philosophical angle. The course shows that the planet we see with your senses is an illusion and that our true reality lies beyond this bodily realm. That idealistic view, which echoes certain Eastern concepts, challenges david hoffmeister a course in miracles  the materialistic and scientific foundations of American thought. Critics argue that the declare that the bodily world is an illusion isn't substantiated by empirical evidence and operates table to the scientific method, which depends on visible and measurable phenomena. The notion of an illusory earth may be engaging as a metaphor for the disturbances of belief caused by the confidence, but as a literal assertion, it lacks the scientific support necessary to be described as a valid representation of reality.

Furthermore, the realistic program of ACIM's teachings may be problematic. The class advocates for a significant form of forgiveness, suggesting that all issues are illusions and must be overlooked in support of realizing the inherent unity of beings. As the practice of forgiveness may indeed be therapeutic and major, ACIM's strategy might cause people to control genuine emotions and ignore real injustices. By mounting all bad experiences as illusions developed by the vanity, there is a risk of reducing or invalidating the lived experiences of putting up with and trauma. This perception could be particularly dangerous for people coping with significant problems such as punishment or oppression, as it can suppress them from seeking the required support and interventions.

Another place of contention is just how ACIM has been sold and commercialized. Because their distribution, ACIM has spawned a substantial industry of workshops, seminars, and supplementary materials. Critics disagree that commercialization undermines the spiritual integrity of the teachings, turning what is purported to be a holy text right into a profit-driven enterprise. The growth of ACIM-related products and companies has light emitting diode some to issue the motivations behind their promotion and the credibility of those that claim to teach its principles. That industrial element can produce a barrier to true spiritual exploration, as people may possibly become more focused on getting the next guide or joining the following course as opposed to interesting profoundly with the teachings themselves.