 Since the subjects of religious experiences tend to take them to be real experiences of some external reality, we may ask what reason there is to think they are right. That is to say, do religious experiences amount to good reasons for religious belief? One answer to that question is what is often called the Argument from Religious Experience: Religious experiences are in all relevant respects like sensory experiences; sensory experiences are excellent grounds for beliefs about the physical world; so religious experiences are excellent grounds for religious beliefs. This argument, or one very like it, can be found in Swinburne (1979), Alston (1991), Plantinga (1981, 2000), Netland (2022) and others. Critics of this approach generally find ways in which religious experiences are different from sensory experiences, and argue that those differences are enough to undermine the evidential value of the experiences. Swinburne (1979) invokes what he calls the “Principle of Credulity,” according to which one is justified in believing that what seems to one to be present actually is present, unless some appropriate defeater is operative. He then discusses a variety of circumstances that would be defeaters in the ordinary sensory case, and argues that those defeaters do not obtain, or not always, in the case of religious experience. To reject his argument, one would have to show that religious experience is unlike sensory experience in that in the religious case, one or more of the defeaters always obtains. Anyone who accepts the principle has excellent reason to accept the deliverances of religious experience, unless he or she believes that defeaters always, or almost always, obtain.