This book describes aspects of the concept of the supernatural from the intellectual history of Euro-American cultures. These samplings shed light on issues in the study of religions and religion rather than attempting to provide either a lineally coherent or exhaustive account of a somewhat fraught and complicated notion. Observations include uses of the term among the ancient Greeks and medieval Christian theologians and 19th- and 20th-century social scientists. This book highlights more recent academics who draw on the cognitive and evolutionary sciences in attempting to make sense of recurrent features of the representations and meta-representations of different cultures. This includes such counter-intuitive notions as "the mysterious" among the Wayuu of Columbia and Venezuela and "vampires" in Europe and North America.<BR><BR> These observations are concluded in a final essay - "Toward a Realistic and Relevant Science of Religion" - which presents considered opinions on how we might draw on the cognitive and evolutionary sciences to establish the foundations for a genuinely scientific study of religions and religion.<BR><BR>Benson Saler sadly passed away shortly after writing this book. An appreciation of his work, written by Armin W. Geertz, is included in this volume.