pessimism vs rapture

pessimism

noun
  • A general belief that bad things will happen. 

  • The condition of being pessimal. 

  • The doctrine that this world is the worst of all possible worlds. 

rapture

noun
  • A spasm; a fit; a syncope; delirium. 

  • In some forms of fundamentalist Protestant eschatology, the event when Jesus returns and gathers the souls of living and deceased believers. (Usually "the rapture".) 

  • Extreme pleasure, happiness or excitement. 

verb
  • To state (something, transitive) or talk (intransitive) rapturously. 

  • To take part in the Rapture; to leave Earth and go to Heaven as part of the Rapture. 

  • To take (someone) off the Earth and bring (them) to Heaven as part of the Rapture. 

How often have the words pessimism and rapture occurred in a corpus of books? (source: Google Ngram Viewer )