The useful request of ACIM's teachings can be a spot of contention. Although some persons record good transformations and particular development from following a program, the others get the practices to be ineffective or even harmful. The course's increased exposure of forgiveness and love is remarkable, but critics argue that it can be overly simplified and naïve, failing to handle the difficulties of individual associations and the need for boundaries and accountability. Furthermore, the course's length and intensive nature can be overwhelming for a lot of people, ultimately causing burnout or disillusionment. Critics claim that the time and effort expected to perform ACIM might be better spent on more empirically reinforced healing techniques or religious professions which have a proven track record of effectiveness.

The broader impact of ACIM on the spiritual and self-help neighborhoods can also be price considering. The class has encouraged an important subsequent and has been built-into different New Age and religious movements. Nevertheless, their effect is visible as a un curso de milagros double-edged sword. On one hand, it has provided a structure for persons seeking religious development and internal peace. On one other hand, their teachings can contribute to a culture of religious bypassing, where individuals use religious concepts to avoid dealing with particular and cultural issues. This may lead to a questionnaire of escapism, where the give attention to spiritual values distracts from the requisite of interesting with and approaching real-world challenges.

More over, the professional accomplishment of ACIM and their related components raises moral concerns. The expansion of workshops, books, and seminars predicated on ACIM can be seen as capitalizing on individuals' religious wants and vulnerabilities. Authorities disagree that the commercialization of spirituality may result in the exploitation of seekers, who might spend substantial time and money into methods that finally do not deliver on their promises. That commercialization also can donate to the dilution of the course's teachings, as numerous interpretations and adaptations proliferate, perhaps ultimately causing frustration and misapplication of the principles.

Another important aspect to take into account may be the exclusivity and dogmatism that may occasionally accompany the ACIM community. Whilst the course itself stimulates common love and forgiveness, the way in which it is shown and practiced by some adherents may cause a feeling of religious elitism. This may develop an "people versus them" mentality, where those that follow ACIM are seen as enlightened, while those who do not are seen as misguided or unenlightened. Such attitudes may be divisive and detrimental to the course's purported objectives of peace and unity. Critics argue that true spiritual growth should foster inclusivity and humility, rather than developing a hierarchical variation involving the spiritually awakened and the unawakened.

The problem of whether ACIM is "true" eventually is dependent upon one's conditions for truth. From the medical perception, the possible lack of scientific evidence promoting the claims of divine dictation and the course's metaphysical assertions can be grounds for skepticism. From a philosophical perspective, the internal inconsistencies and syncretism of ACIM may lead to questions about its coherence and rational validity. From a emotional perception, the possibility of cognitive dissonance and mental hardship improves problems in regards to the course's effect on intellectual health. And from a functional standpoint, the mixed effects described by practitioners and the possibility of commercialization and exploitation suggest that ACIM's effectiveness and honest position are questionable.