Age of Aquarius vs spiritual

Age of Aquarius

name
  • A historical period corresponding to the astrological sign of Aquarius, concerning the timing of which (past, present, or future) there is a wide range of views. 

  • The period, roughly from the mid-1960s to the early-1970s, when New Age culture and the hippie movement were at their peaks, associated with belief in enhanced spiritual enlightenment, universal love, and personal liberation. 

spiritual

adj
  • Of or pertaining to the spirit or the soul. 

  • Consisting of spirit; not material; incorporeal. 

  • Of or relating to the intellectual and higher endowments of the mind; mental; intellectual. 

  • Not lay or temporal; relating to sacred things; ecclesiastical. 

  • Of or pertaining to spirits; supernatural. 

  • Of or pertaining to God or a place of worship; sacred, pure; (Christianity, specifically) inspired by the Holy Spirit. 

noun
  • A Christian religious song, especially one in an African-American style, or a similar non-religious song. 

  • Any spiritual function, office, or affair. 

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