Medical training acts as a “secondary socialization” in which trainees internalize, through habitualization, the necessary institutional practices, knowledge, and viewpoints that make physicians spontaneously act with little reflection qua physician. Some elements of this process are referred to as the “hidden curriculum,” which leads to a socialization that can undermine professional ideals in their actual practice of patient care. The lecture provides an empirical perspective on how spirituality and religion relates to the hidden curriculum, highlighting preliminary evidence that religion/spirituality may be a critical factor in resisting corrosive cultural forces operating in medicine. The lecture also sketches a theological viewpoint that suggests that the hidden curriculum may have embedded within it a latent spirituality of immanence. If this theological viewpoint is correct, then medicine must re-engage traditional religious communities as critical communities of formation, who hold unique powers to counter the hidden curriculum within its moral formation of future physicians.