The practical program of ACIM's teachings can be a point of contention. While some individuals record good transformations and personal growth from after the course, the others discover the practices to be ineffective as well as harmful. The course's focus on forgiveness and enjoy is admirable, but critics argue that it could be excessively basic and naïve, failing to address the complexities of human associations and the requirement for boundaries and accountability. Additionally, the course's length and intense nature could be frustrating for many people, leading to burnout or disillusionment. Experts declare that the time and effort expected to perform ACIM could be greater spent on more empirically supported therapeutic practices or spiritual disciplines that have an established background of effectiveness.

The broader impact of ACIM on the religious and self-help neighborhoods can be worth considering. The program has encouraged a significant following and has been incorporated into different New Age and religious movements. But, its effect can be seen acim  as a double-edged sword. On one give, it has provided a framework for persons seeking spiritual development and inner peace. On another hand, its teachings may donate to a tradition of religious bypassing, where individuals use religious concepts to avoid working with particular and social issues. This could lead to a questionnaire of escapism, where in fact the concentrate on religious beliefs distracts from the prerequisite of participating with and approaching real-world challenges.

More over, the industrial success of ACIM and its related materials increases honest concerns. The growth of workshops, publications, and seminars based on ACIM can be seen as capitalizing on individuals' spiritual needs and vulnerabilities. Authorities fight that the commercialization of spirituality may lead to the exploitation of seekers, who might invest substantial time and income in to practices that ultimately do not provide on the promises. This commercialization can also contribute to the dilution of the course's teachings, as different interpretations and changes proliferate, possibly leading to distress and misapplication of the principles.

Another critical element to take into account may be the exclusivity and dogmatism that will sometimes accompany the ACIM community. Whilst the course itself encourages common love and forgiveness, just how it is shown and practiced by some adherents can lead to a feeling of spiritual elitism. This could develop an "us versus them" attitude, where those that follow ACIM are regarded as enlightened, while people who don't are considered as misguided or unenlightened. Such attitudes can be divisive and counterproductive to the course's purported objectives of peace and unity. Authorities disagree that correct spiritual development must foster inclusivity and humility, rather than developing a hierarchical difference between the spiritually awakened and the unawakened.