In the epistemology of religion, authors like Swinburne and Alston have argued influentially that mystical experience of God provides prima facie justification for some beliefs we hold about God on the basis of such experiences, e.g., that he loves us, is sovereign etc. Belief in God, so they argue, is analogous to sense perception. If I get a mystical experience that God loves me, prima facie, I am justified in believing that God loves me.
Alston relies critically on William James’ Varieties of Religious Experience (1902). This seminal, but now dated psychological study draws on self-reports by mystics to characterize mystical experience. The mystical experiences James (and others) describe are unexpected, unbidden; they immediately present something (God) to one’s experience, i.e., they provide a direct, unmediated awareness of God. More recent empirical work on the phenomenology of religious experience, such as that conducted by Tanya Luhrmann and other anthropologists, suggests that ordinary sense perception is a poor and misleading analogy for mystical perception.