gnosis

from WordNet (r) 3.0 (2006)

gnosis
    n 1: intuitive knowledge of spiritual truths; said to have been
         possessed by ancient Gnostics

from The Collaborative International Dictionary of English v.0.48

Gnosis \Gno"sis\, n. [NL., fr. Gr. gnw^sis.] (Metaph.)
   The deeper wisdom; knowledge of spiritual truth, such as was
   claimed by the Gnostics.
   [1913 Webster]