Metaphysics
Metaphysics is defined by [Merriam Webster Online] as "abstract philosophical studies" or "a study of what is outside objective experience". Contextually, metaphysical discussion often alludes to philosophers such as Descartes ("I think, therefore I am") or Aristotle. These discussions often bring into question the nature of existence and humanity's place in creation.
Works Cited
Merriam-Webster Online. Merriam-Websters Dictionaries. April 19, 2006 <http://www.m-w.com/cgi-bin/dictionary>