As some vast Tropic tree, itself a wood,  
   That crests its Head with clouds, beneath the flood 
   Feeds its deep roots, and with the bulging flank 
   Of its wide base controls the fronting bank, 
   (By the slant current's pressure scoop'd away 
   The fronting bank becomes a foam-piled bay) 
   High in the Fork the uncouth Idol knits 
   His channel'd Brows; low murmurs stir by fits 
   And dark below the horrid Faquir sits; 
  An Horror from its broad Head's branchy wreath 
  Broods o'er the rude Idolatry beneath--
Samuel Taylor Coleridge
http://www.poemhunter.com/poem/as-some-vast-tropic-tree-itself-a-wood-fragment/