alchemy vs mysticism

alchemy

noun
  • The causing of any sort of mysterious sudden transmutation. 

  • Any elaborate transformation process or algorithm. 

  • The premodern and early modern study of physical changes, particularly in Europe, Arabia, and China and chiefly in pursuit of an elixir of immortality, a universal panacea, and/or a philosopher's stone able to transmute base metals into gold, eventually developing into chemistry. 

mysticism

noun
  • Obscure thoughts and speculations. 

  • A transcendental union of soul or mind with the divine reality or divinity. 

  • The beliefs, ideas, or thoughts of mystics. 

  • A doctrine of direct communication or spiritual intuition of divine truth. 

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