carelessness vs nirvana

carelessness

noun
  • Lack of care; the state or quality of being careless. 

nirvana

noun
  • Complete cessation of suffering; a blissful state attained through realization of sunyata; enlightened experience. 

  • State of paradise; heightened or great pleasure. 

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