Philosophia perennis : historical outlines of Western spirituality in ancient, medieval and early modern thought /
Schmidt-Biggemann, Wilhelm.
Dordrecht : Springer,
c2004.
A reworking, with some updates, of the German version published under the same title in 1998.
Includes bibliographical references (p. 469-492) and index.
Christianity
Philosophy and religion.
Imagination (Philosophy)
Spirituality
Metaphysics