bright spot vs circumstance

bright spot

noun
  • A good part of something that is otherwise fairly bad or unpleasant. 

  • Used other than figuratively or idiomatically: see bright, spot. 

circumstance

noun
  • Something which is related to, or in some way affects, a fact or event. 

  • An event; a fact; a particular incident. 

  • Circumlocution; detail. 

  • Condition in regard to worldly estate; state of property; situation; surroundings. 

verb
  • To place in a particular situation, especially with regard to money or other resources. 

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