here and now vs therein

here and now

adv

  • At this time and in this place. 

noun

  • The present situation. 

  • The current state of one's own life. 

therein

adv

  • in that; in that place; in him/her/it. 

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