Griffin, David Ray.  “Scientific Naturalism, the Mind-body Relation, and Religious Experience.” Zygon 37, no.2 (June 2002): 361-80.

Abstract

Although attempts to explain religious experience in terms of brain processes usually presuppose the identification of scientific naturalism with the sensationist, atheistic, materialist version of naturalism (naturalism-sam), this version is inadequate for science, and human experience more generally, for numerous reasons. An alternative version, based on panexperientialism, panentheism, and a prehensive doctrine of perception (naturalism-ppp), not only avoids those problems but also allows for religious experience understood as the soul’s direct experience of a Holy Reality.