The emotional affect of ACIM on their adherents is yet another area of concern. Whilst the course promises inner peace and religious enlightenment, some intellectual wellness professionals have raised sensors about their possible to cause frustration, disillusionment, and actually psychological harm. The course's increased exposure of the illusory nature of the product world and the vanity may cause persons to question the reality of their activities and emotions in ways that might not be beneficial. For a few, this asking can lead to a decreased capacity to cope with real-world issues and associations, leading to solitude and a sense of detachment from life. Critics disagree that this kind of approach could be particularly harmful for people that are already weak or struggling with psychological health issues.

Another place of critique is the lack of empirical help for the statements created by ACIM. The class asserts that their teachings may cause profound religious change and therapeutic, but these states are not supported by clinical study or scientific studies. Without empirical evidence to back up its assertions, ACIM relies heavily on anecdotal evidence and particular recommendations, which are inherently subjective and unreliable. The lack of arduous, goal research makes it hard to confirm the true efficacy of the program and improves issues about their overall legitimacy.

The professional aspects of ACIM also ask skepticism. Since its publication, the class has spawned a multi-million dollar market which includes a course in miracles publications, workshops, seminars, and on the web courses. Experts disagree that the commercialization of ACIM undermines their spiritual concept and increases ethical issues in regards to the motivations of those that promote it. The large prices associated with participating in ACIM-related actions can be prohibitive for most, ultimately causing accusations that the class is more focused on revenue than on true religious growth. This commercialization is visible as exploiting the spiritual wants and vulnerabilities of people for economic gain.

Furthermore, the language and framework of ACIM in many cases are criticized to be very complex and esoteric. The course's heavy and repetitive prose could be complicated to comprehend and interpret, ultimately causing distress and misinterpretation among readers. This difficulty can produce a buffer to access, which makes it difficult for people to fully interact with and take advantage of the course. Some critics fight that the convoluted language is really a strategic tactic to hidden the lack of substantive material and to create an impression of profundity. The difficulty in comprehending the product may also result in a dependence on outside educators and interpreters, further perpetuating the commercialization and prospect of exploitation within the ACIM community.