Abstract
Religious beliefs can be explained in two different ways, cognitive and adaptationist. Each of them is another kind of explanation, one is proximate and the other ultimate. Each of them provides the other with a specific status for religious beliefs, such as by-product or adaptation. However, there is no clarity of how cognition itself could be religiously biased and how the religious/theistic approach could work as a default cognitive mode, as Cognitive Science of Religion suggests. I would like to criticize cognitive assumptions in the study of religion and show how adaptationist accounts are preferable. I specifically focus on the functional context of religious components, the social and psychological applications. I suggest how discussing about a cognitive basis does not matter in these fields and the cognitive account cannot explain the ubiquity of religious components that lie in their function, rather than the alleged connection with cognition.