Despite its name, "naturalism" as a world-view turns out to be rather unnatural in its strict and more consistent form of materialism and determinism. This is why a number of naturalists opt for a broadened version that includes objective moral values, intrinsic human dignity, consciousness, beauty, personal agency, and the like. But in doing so, broad naturalism begins to look more like theism. As many strict naturalists recognize, broad naturalism must borrow from the metaphysical resources of a theistic world-view, in which such features are very natural, common sensical, and quite "at home" in a theistic framework.
The Naturalness of Belief begins with a naturalistic philosopher's own perspective of naturalism and naturalness. The remaining chapters take a multifaceted approach in showing theism's naturalness and greater explanatory power. They examine not only rational reasons for theism's ability to account for consciousness, intentionality, beauty, human dignity, free will, rationality, and knowledge; they also look at common sensical, existential, psychological, and cultural reasons—in addition to the insights of the cognitive science of religion.