From the mental standpoint, the sources of ACIM increase issues about their validity. Helen Schucman, the primary scribe of the writing, said that what were determined to her by an inner voice she recognized as Jesus. This process of getting the writing through inner dictation, called channeling, is frequently achieved with skepticism. Authorities argue that channeling may be recognized as a mental phenomenon rather than authentic spiritual revelation. Schucman himself was a scientific psychologist, and some suggest that the style she seen may have been a manifestation of her subconscious mind as opposed to an external heavenly entity. Additionally, Schucman stated ambivalence about the work and its sources, often pondering their authenticity herself. That ambivalence, in conjunction with the method of the text's party, casts uncertainty on the legitimacy of ACIM as a divinely encouraged scripture.

The content of ACIM also attracts scrutiny from a philosophical angle. The class teaches that the planet we comprehend with this senses is an dream and that our correct truth lies beyond that physical realm. That idealistic see, which echoes certain Western concepts, challenges the materialistic and empirical foundations of American thought. Experts argue that the   david hoffmeister  declare that the physical world can be an impression isn't substantiated by scientific evidence and works counter to the scientific process, which utilizes visible and measurable phenomena. The notion of an illusory world might be powerful as a metaphor for the disturbances of notion brought on by the confidence, but as a literal assertion, it lacks the empirical support needed to be described as a legitimate representation of reality.

Furthermore, the sensible software of ACIM's teachings may be problematic. The course advocates for a radical type of forgiveness, suggesting that all issues are illusions and must certanly be ignored in support of knowing the natural unity of all beings. As the exercise of forgiveness may indeed be healing and major, ACIM's approach may possibly cause persons to control reliable emotions and dismiss actual injustices. By mounting all bad activities as illusions developed by the vanity, there is a danger of reducing or invalidating the existed activities of putting up with and trauma. This perspective could be particularly hazardous for individuals working with serious dilemmas such as abuse or oppression, as it might decrease them from seeking the required support and interventions.

Still another level of contention is the way ACIM has been sold and commercialized. Because its distribution, ACIM has spawned a substantial market of workshops, seminars, and supplementary materials. Experts fight that commercialization undermines the religious strength of the teachings, turning what's supposed to become a sacred text into a profit-driven enterprise. The growth of ACIM-related products and services and services has light emitting diode some to question the motivations behind its campaign and the credibility of those that claim to teach its principles. This commercial aspect can create a buffer to true spiritual exploration, as individuals might become more focused on getting the following guide or attending another workshop as opposed to interesting deeply with the teachings themselves.