From a psychological point of view, the roots of ACIM increase issues about their validity. Helen Schucman, the principal scribe of the writing, claimed that the words were dictated to her by an interior voice she discovered as Jesus. This technique of obtaining the writing through inner dictation, known as channeling, is usually met with skepticism. Experts fight that channeling may be recognized as a mental phenomenon rather than a genuine spiritual revelation. Schucman himself was a scientific psychiatrist, and some declare that the style she noticed might have been a manifestation of her unconscious mind rather than an external heavenly entity. Furthermore, Schucman stated ambivalence about the work and their sources, sometimes questioning their credibility herself. That ambivalence, coupled with the strategy of the text's reception, portrays doubt on the legitimacy of ACIM as a divinely influenced scripture.

This content of ACIM also attracts scrutiny from the philosophical angle. The course shows that the planet we see with our senses is an illusion and our true fact lies beyond this bodily realm. That idealistic see, which echoes specific Western concepts, difficulties the acim  materialistic and scientific foundations of European thought. Experts argue that the claim that the bodily earth is an illusion isn't substantiated by scientific evidence and works counter to the scientific method, which utilizes visible and measurable phenomena. The thought of an illusory world might be compelling as a metaphor for the disturbances of belief caused by the vanity, but as a literal assertion, it lacks the scientific help necessary to be described as a legitimate illustration of reality.

More over, the useful program of ACIM's teachings can be problematic. The class advocates for a revolutionary type of forgiveness, indicating that most grievances are illusions and must be overlooked in favor of knowing the inherent unity of all beings. While the exercise of forgiveness may certainly be healing and transformative, ACIM's method may lead persons to control genuine emotions and ignore actual injustices. By mounting all bad activities as illusions produced by the confidence, there's a threat of reducing or invalidating the lived activities of putting up with and trauma. This perspective may be particularly harmful for persons working with serious problems such as abuse or oppression, as it may suppress them from seeking the required support and interventions.

Still another position of rivalry is just how ACIM has been advertised and commercialized. Since their book, ACIM has spawned a significant industry of workshops, seminars, and supplementary materials. Authorities disagree this commercialization undermines the religious integrity of the teachings, turning what's proposed to become a sacred text right into a profit-driven enterprise. The growth of ACIM-related services and products and companies has light emitting diode some to issue the motivations behind their promotion and the credibility of those who declare to show its principles. This industrial aspect can make a barrier to genuine spiritual exploration, as persons may possibly be more dedicated to buying the next guide or participating the following course as opposed to participating deeply with the teachings themselves.