cause vs reflection

cause

noun
  • Sufficient reason for a state, as of emotion. 

  • A goal, aim or principle, especially one which transcends purely selfish ends. 

  • A suit or action in court; any legal process by which a party endeavors to obtain his claim, or what he regards as his right; case; ground of action. 

  • The source of, or reason for, an event or action; that which produces or effects a result. 

verb
  • To actively produce as a result, by means of force or authority. 

  • To set off an event or action. 

reflection

noun
  • An implied criticism. 

  • The act of reflecting or the state of being reflected. 

  • The process or mechanism of determining the capabilities of an object at run-time. 

  • The folding of a part; a fold. 

  • Something, such as an image, that is reflected. 

  • The property of a propagated wave being thrown back from a surface (such as a mirror). 

  • Careful thought or consideration. 

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