beholding vs introspection

beholding

noun
  • The act by which something is beheld; regard; contemplation. 

introspection

noun
  • A looking inward; specifically, the act or process of self-examination, or inspection of one's own thoughts and feelings; the cognition which the mind has of its own acts and states 

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