demythologising

verb
  1. removing mythical or legendary elements from a story, belief, or concept to reveal its historical or rational basis
  2. Usage: present participle of demythologise; chiefly British spelling; American English typically uses demythologizing
  3. interpreting religious or theological texts by removing supernatural or mythical language to extract underlying spiritual or moral truths
  4. Usage: theology and religious studies; associated with Rudolf Bultmann and existential theology

Examples