luck vs manna

luck

noun
  • A superstitious feeling that brings fortune or success. 

  • The results of a random number generator. 

  • Success. 

  • Something that happens to someone by chance, a chance occurrence, especially a favourable one. 

verb
  • To find something through good fortune; used with into, on, onto or upon. 

manna

noun
  • Any boon which comes into one's hands by good luck. 

  • Food miraculously produced for the Israelites in the desert in the book of Exodus. 

  • The sugary sap of the manna gum tree which oozes out from holes drilled by insects and falls to the ground around the tree.http://www.museum.vic.gov.au/forest/plants/gum.html 

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