The sources of ACIM are contentious. Helen Schucman, a clinical and study psychiatrist, said that the text was formed to her by an inner style she recognized as Jesus Christ. This state is met with skepticism as it lacks scientific evidence and relies seriously on Schucman's personal experience and subjective interpretation. Experts argue this undermines the credibility of ACIM, as it is hard to confirm the declare of divine dictation. Moreover, Schucman's skilled history in psychology may have affected the information of ACIM, blending mental methods with spiritual ideas in ways that some find questionable. The dependence on a single individual's knowledge increases issues concerning the detachment and universality of the text.

Philosophically, ACIM is dependant on a blend of Religious terminology and Western mysticism, offering a worldview that some disagree is internally unpredictable and contradictory to standard religious doctrines. For instance, ACIM posits that the material earth is definitely an dream and that true reality is simply spiritual. This see can conflict with the empirical and realistic strategies of Western philosophy, which highlight the importance of the material earth and individual experience. More over, ACIM's reinterpretation of david acim traditional Christian methods, such as crime and forgiveness, is visible as distorting core Religious teachings. Authorities disagree that syncretism results in a dilution and misunderstanding of recognized spiritual values, potentially leading readers astray from more defined and traditionally grounded spiritual paths.

Psychologically, the teachings of ACIM could be problematic. The class encourages a form of denial of the product world and particular experience, marketing the indisputable fact that persons should surpass their bodily living and concentration entirely on spiritual realities. This perception can result in a questionnaire of cognitive dissonance, wherever individuals struggle to reconcile their existed experiences with the teachings of ACIM. Experts argue that this can result in psychological hardship, as persons may possibly feel pressured to disregard their thoughts, feelings, and physical sensations in favor of an abstract religious ideal. Furthermore, ACIM's focus on the illusory nature of suffering is visible as dismissive of authentic individual problems and hardships, probably minimizing the significance of handling real-world issues and injustices.

The realistic software of ACIM's teachings is also a point of contention. Although some individuals report positive transformations and personal development from following the course, others find the techniques to be inadequate or even harmful. The course's increased exposure of forgiveness and love is exceptional, but experts argue that it may be very basic and naïve, declining to handle the complexities of human relationships and the necessity for limits and accountability. Furthermore, the course's length and intense character may be overwhelming for many people, leading to burnout or disillusionment. Experts claim that enough time and effort needed to accomplish ACIM might be greater allocated to more empirically supported beneficial methods or religious professions which have an established history of effectiveness.