The Exegesis (book) reference article from the English Wikipedia on 24-Apr-2004
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Exegesis (book)

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Exegesis is a 8,000 page journal kept by Science Fiction writer Philip K. Dick, documenting his alleged communication with a God/VALIS/"Zebra" enitity. Sections range from extensive and brilliant philosopical commentary to troubled and psychotic ramblings. Dick was a student of philosophy and religion, which has a clear impact on his writings. See also Philip K. Dick.