More over, the content of ACIM diverges somewhat from standard Christian teachings, despite their frequent references to Religious terminology and concepts. The class reinterprets critical areas of Christianity, like the character of failure, salvation, and the role of Jesus Christ. For example, ACIM shows that crime is not real and that salvation is accomplished via a change in notion rather than through the atoning lose of Jesus. This reinterpretation is seen as difficult for people who abide by orthodox Christian values, as it fundamentally alters the primary tenets of the faith. The divergence from conventional doctrine has light emitting diode several Religious scholars to dismiss ACIM as heretical or misleading.

The mental affect of ACIM on its adherents is still another section of concern. While the class promises inner peace and religious enlightenment, some emotional health experts have elevated alerts about their possible to trigger distress, disillusionment, and actually psychological harm. The course's focus on the illusory nature of the product earth and the vanity can lead persons to a course in miracles  issue the truth of the experiences and emotions in methods might not be beneficial. For many, this pondering may result in a declined capacity to cope with real-world issues and associations, leading to isolation and a sense of detachment from life. Critics argue that such an approach could be specially dangerous for people who are previously weak or experiencing psychological health issues.

Still another stage of critique is having less empirical support for the claims made by ACIM. The program asserts that their teachings may cause profound spiritual change and healing, but these states aren't supported by scientific research or medical studies. Without empirical evidence to right back up their assertions, ACIM relies heavily on anecdotal evidence and particular recommendations, which are inherently subjective and unreliable. The lack of arduous, aim research makes it hard to ascertain the actual efficacy of the program and improves questions about its overall legitimacy.

The professional areas of ACIM also invite skepticism. Since their distribution, the program has spawned a multi-million money industry that includes publications, workshops, seminars, and on the web courses. Authorities fight that the commercialization of ACIM undermines its religious meaning and raises moral issues about the motivations of people who promote it. The large costs associated with participating in ACIM-related actions can be high for most, ultimately causing accusations that the program is more centered on gain than on genuine spiritual growth. That commercialization can be seen as exploiting the religious wants and vulnerabilities of an individual for economic gain.