kindling vs stimulation

kindling

noun
  • The act by which something is kindled. 

  • Small pieces of wood and twigs used to start a fire. 

adj
  • Illuminated, lit. 

stimulation

noun
  • An activity causing excitement or pleasure; the act of stimulating. 

  • A pushing or goading toward action. 

  • Any action or condition that creates a response; sensory input. 

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