Very light vs guiding light

Very light

noun
  • A type of pyrotechnic flare used as a signal or temporary illumination. 

guiding light

noun
  • A person who has a profound influence on others and is a source of inspiration. 

  • That which provides guidance in times of uncertainty. 

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