The aim of this course is learn about varieties of religious naturalism and how they have been, and can be, incorporated into philosophical and theological reflection. The seminar will read a variety of works in contemporary religious naturalism, from twentieth-century classics to current contributions, and from theoretical analyses of the meaning of naturalism to surveys attempting to map out the territory of plausible viewpoints. We will also track the close relationship between religious naturalism and both ecologically-rooted forms of spirituality and nature-centered forms of mysticism.