From the mental viewpoint, the sources of ACIM increase issues about their validity. Helen Schucman, the principal scribe of the writing, stated that the language were formed to her by an interior voice she determined as Jesus. This technique of receiving the text through inner dictation, referred to as channeling, is frequently achieved with skepticism. Experts fight that channeling can be recognized as a mental trend rather than a true spiritual revelation. Schucman himself was a medical psychiatrist, and some suggest that the voice she noticed has been a manifestation of her subconscious brain rather than an external divine entity. Furthermore, Schucman stated ambivalence about the work and its sources, sometimes wondering its credibility herself. This ambivalence, along with the technique of the text's party, casts uncertainty on the legitimacy of ACIM as a divinely encouraged scripture.

This content of ACIM also invites scrutiny from the philosophical angle. The course teaches that the planet we see with our senses can be an illusion and which our correct truth lies beyond this physical realm. This idealistic view, which echoes specific Eastern concepts, difficulties the materialistic and scientific foundations of American thought. Critics argue that the claim that the physical earth is definitely an impression is not substantiated by empirical evidence and runs table to the medical technique, which relies on the mystical teachings of Jesus visible and measurable phenomena. The thought of an illusory world might be convincing as a metaphor for the disturbances of perception due to the pride, but as a literal assertion, it lacks the empirical support required to certainly be a legitimate illustration of reality.

Furthermore, the sensible request of ACIM's teachings can be problematic. The class advocates for a significant type of forgiveness, suggesting that most grievances are illusions and must certanly be neglected and only recognizing the natural unity of beings. As the training of forgiveness may certainly be therapeutic and transformative, ACIM's method might lead persons to control legitimate thoughts and ignore real injustices. By framing all bad activities as illusions created by the pride, there's a danger of minimizing or invalidating the lived activities of enduring and trauma. That perspective can be specially hazardous for persons coping with critical issues such as for instance punishment or oppression, as it can suppress them from seeking the required help and interventions.

Still another position of argument is the way in which ACIM has been promoted and commercialized. Because their publication, ACIM has spawned an important market of workshops, seminars, and supplementary materials. Critics fight that commercialization undermines the spiritual reliability of the teachings, turning what's proposed to be a sacred text right into a profit-driven enterprise. The proliferation of ACIM-related products and solutions has light emitting diode some to question the motivations behind its promotion and the reliability of those that maintain to instruct their principles. This industrial aspect can cause a barrier to genuine spiritual exploration, as people may possibly be more dedicated to purchasing the next book or attending the next seminar as opposed to engaging deeply with the teachings themselves.