The sensible application of ACIM's teachings is also a spot of contention. While some people report positive transformations and personal development from after the class, others discover the practices to be ineffective or even harmful. The course's focus on forgiveness and enjoy is admirable, but experts disagree that it can be excessively easy and naïve, declining to address the difficulties of human relationships and the necessity for boundaries and accountability. Moreover, the course's size and extensive character could be overwhelming for some individuals, ultimately causing burnout or disillusionment. Authorities declare that the full time and energy needed to complete ACIM could be better used on more empirically reinforced therapeutic techniques or spiritual disciplines that have an established history of effectiveness.

The broader affect of ACIM on the religious and self-help neighborhoods can be price considering. The class has encouraged a significant following and has been incorporated into different New Age and religious movements. Nevertheless, its effect is visible as a double-edged sword. Using one give, it has presented a framework for persons seeking spiritual growth and inner peace. On another acim give, its teachings may contribute to a lifestyle of spiritual skipping, where persons use spiritual methods in order to avoid coping with particular and social issues. This may cause an application of escapism, where in fact the concentrate on religious ideals distracts from the necessity of interesting with and addressing real-world challenges.

Furthermore, the commercial accomplishment of ACIM and its connected resources improves moral concerns. The growth of workshops, publications, and seminars based on ACIM is seen as capitalizing on individuals' religious wants and vulnerabilities. Authorities argue that the commercialization of spirituality may cause the exploitation of seekers, who may invest substantial time and income in to techniques that fundamentally do not deliver on their promises. That commercialization may also donate to the dilution of the course's teachings, as different understandings and adaptations proliferate, possibly leading to distress and misapplication of the principles.

Another critical part to consider could be the exclusivity and dogmatism that can sometimes accompany the ACIM community. While the class it self encourages general enjoy and forgiveness, the way in which it's taught and practiced by some adherents may cause a feeling of spiritual elitism. This will build an "people versus them" mentality, where people who follow ACIM are seen as enlightened, while those that don't are seen as misguided or unenlightened. Such attitudes can be divisive and detrimental to the course's proposed targets of peace and unity. Critics disagree that correct spiritual growth must foster inclusivity and humility, rather than making a hierarchical distinction involving the spiritually awakened and the unawakened.