The practical program of ACIM's teachings can be a point of contention. Though some persons record good transformations and particular growth from following program, others discover the practices to be useless or even harmful. The course's increased exposure of forgiveness and enjoy is exceptional, but critics argue that it could be overly easy and naïve, declining to deal with the difficulties of individual associations and the requirement for limits and accountability. Also, the course's size and rigorous character could be frustrating for many people, leading to burnout or disillusionment. Critics declare that enough time and energy needed to complete ACIM could be greater used on more empirically reinforced healing practices or religious professions which have an established background of effectiveness.

The broader impact of ACIM on the spiritual and self-help communities can also be price considering. The program has inspired a significant subsequent and has been incorporated into numerous New Age acim videos and religious movements. But, its impact is seen as a double-edged sword. On one hand, it has offered a construction for people seeking spiritual growth and inner peace. On one other give, its teachings may contribute to a lifestyle of religious skipping, where individuals use religious ideas to prevent working with personal and social issues. This may lead to an application of escapism, where in fact the focus on spiritual values distracts from the prerequisite of engaging with and addressing real-world challenges.

Moreover, the commercial achievement of ACIM and its connected resources improves honest concerns. The expansion of workshops, books, and seminars centered on ACIM is seen as capitalizing on individuals' religious needs and vulnerabilities. Authorities disagree that the commercialization of spirituality may lead to the exploitation of seekers, who may possibly invest significant time and money in to practices that eventually don't supply on their promises. This commercialization may also contribute to the dilution of the course's teachings, as different interpretations and changes proliferate, perhaps leading to confusion and misapplication of the principles.

Another important part to take into account may be the exclusivity and dogmatism that can sometimes accompany the ACIM community. While the class it self encourages general enjoy and forgiveness, the way it is taught and practiced by some adherents may cause a sense of religious elitism. This may build an "us versus them" attitude, wherever people who follow ACIM are seen as enlightened, while those who do not are considered as misguided or unenlightened. Such attitudes can be divisive and detrimental to the course's purported goals of peace and unity. Critics fight that true spiritual growth should foster inclusivity and humility, as opposed to making a hierarchical variation between the spiritually awakened and the unawakened.