The useful application of ACIM's teachings can be a place of contention. Though some individuals record positive transformations and personal development from following the class, others find the practices to be inadequate or even harmful. The course's focus on forgiveness and enjoy is remarkable, but experts disagree that it could be very basic and naïve, declining to address the difficulties of individual relationships and the necessity for boundaries and accountability. Also, the course's length and intensive nature may be frustrating for a lot of people, leading to burnout or disillusionment. Authorities suggest that the full time and effort expected to perform ACIM could be greater spent on more empirically reinforced beneficial techniques or religious professions that have an established track record of effectiveness.

The broader influence of ACIM on the religious and self-help areas is also value considering. The program has encouraged a substantial following and has been incorporated into numerous New Age and spiritual movements. Nevertheless, its influence is seen as a double-edged sword. Using one give, it's provided a structure for individuals seeking spiritual development and internal peace. On one other hand, its teachings  a course in miracles  may donate to a culture of spiritual bypassing, wherever individuals use religious methods to avoid coping with personal and cultural issues. This could cause a questionnaire of escapism, where in actuality the give attention to spiritual ideals distracts from the requisite of participating with and addressing real-world challenges.

Furthermore, the professional achievement of ACIM and their connected materials increases ethical concerns. The growth of workshops, publications, and seminars based on ACIM is visible as capitalizing on individuals' spiritual wants and vulnerabilities. Experts argue that the commercialization of spirituality may cause the exploitation of seekers, who might invest substantial time and money in to methods that eventually do not supply on the promises. This commercialization also can donate to the dilution of the course's teachings, as various understandings and adaptations proliferate, perhaps ultimately causing confusion and misapplication of the principles.

Still another critical part to think about could be the exclusivity and dogmatism that will often accompany the ACIM community. Whilst the class itself stimulates universal love and forgiveness, just how it's shown and practiced by some adherents may result in a sense of spiritual elitism. This may create an "people versus them" thinking, where those that follow ACIM are seen as enlightened, while people who do not are seen as misguided or unenlightened. Such attitudes may be divisive and detrimental to the course's proposed targets of peace and unity. Experts disagree that correct religious growth should foster inclusivity and humility, rather than creating a hierarchical variation between the spiritually awakened and the unawakened.