autosuggestion vs symbolism

autosuggestion

noun
  • An instance of suggesting a thought to oneself. 

  • An autosuggest feature. 

  • The practice of suggesting thoughts to oneself, as in autohypnosis. 

symbolism

noun
  • Representation of a concept through symbols or underlying meanings of objects or qualities. 

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