From the emotional point of view, the roots of ACIM increase issues about their validity. Helen Schucman, the principal scribe of the text, said that the words were determined to her by an interior style she discovered as Jesus. This technique of receiving the text through inner dictation, known as channeling, is often met with skepticism. Experts disagree that channeling may be recognized as a psychological sensation rather than true spiritual revelation. Schucman himself was a medical psychiatrist, and some suggest that the style she heard might have been a manifestation of her unconscious mind rather than an additional heavenly entity. Moreover, Schucman expressed ambivalence about the job and its roots, sometimes questioning their credibility herself. This ambivalence, in conjunction with the method of the text's party, portrays uncertainty on the legitimacy of ACIM as a divinely inspired scripture.

The content of ACIM also attracts scrutiny from a philosophical angle. The course teaches that the entire world we comprehend with our feelings is an illusion and our true reality lies beyond that physical realm. That idealistic see, which echoes certain Western philosophies, challenges the materialistic and empirical foundations of Western thought. Critics disagree that the claim that the physical earth is definitely an dream is not substantiated by scientific evidence and goes counter to the medical process, which a course in miracles depends on visible and measurable phenomena. The notion of an illusory earth may be persuasive as a metaphor for the disturbances of notion brought on by the pride, but as a literal assertion, it lacks the empirical help needed to certainly be a valid illustration of reality.

Furthermore, the realistic software of ACIM's teachings could be problematic. The class advocates for a radical type of forgiveness, suggesting that issues are illusions and ought to be neglected in favor of knowing the inherent unity of beings. As the practice of forgiveness can certainly be therapeutic and major, ACIM's strategy might cause people to suppress respectable feelings and ignore true injustices. By framing all negative experiences as illusions produced by the pride, there's a risk of minimizing or invalidating the lived activities of enduring and trauma. That perspective could be specially harmful for people coping with significant problems such as punishment or oppression, as it can discourage them from seeking the mandatory help and interventions.

Yet another level of argument is the way in which ACIM has been promoted and commercialized. Since their publication, ACIM has spawned a substantial industry of workshops, seminars, and supplementary materials. Authorities argue that commercialization undermines the spiritual reliability of the teachings, turning what is purported to be always a holy text in to a profit-driven enterprise. The proliferation of ACIM-related services and products and services has led some to problem the motivations behind their campaign and the credibility of those that declare to teach its principles. That industrial element can cause a barrier to genuine spiritual exploration, as individuals may possibly become more centered on purchasing another guide or participating the following class as opposed to interesting deeply with the teachings themselves.