Just read this piece in the New York Times about Houghton Mifflin Harcourts plans to publish the "Exegesis" of Philip K Dick. Dick experienced visions during the 1970s and this manuscript represents his attempt to digest what he saw. It should be quite interesting for fans of Dick's science fiction novels, and perhaps of fans of Biblical prophets like Daniel or L Ron Hubbard for the sake of comparison.
What is an exegesis? According to the Online Etymology Dictionary (Exegesis. Dictionary.com. Online Etymology Dictionary. Douglas Harper, Historian. http://dictionary.reference.com/browse/Exegesis [accessed: April 29, 2010]), it means "to explain, interpret" from the Greek word exegeisthai. I think exegesis has come to be associated with the exposition or explanation of big, profound things.
Whilst looking for a picture of Philip K. Dick for this post, I came upon the wikimedia image of his android, a remote controlled replica made to resemble the author. Apparently it's head was lost in transit on America West Airlines, and has yet to be found!