big picture vs conation

big picture

noun
  • The totality of a situation. 

  • Used other than figuratively or idiomatically: see big, picture. 

conation

noun
  • The power or act which directs or impels to effort of any kind, whether muscular or psychical. 

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