Mania vs Psyche

Mania

name
  • The goddess of the dead and ghosts. 

Psyche

name
  • The personification of the soul. Originally a mortal princess who later married Eros/Cupid, (the god of love), was deified, and bore him a daughter, Hedone/Voluptas. 

  • 16 Psyche, a main belt asteroid 

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