demythologizing

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 demythologize; often used in academic and theological contexts
  3. interpreting religious or sacred texts by separating literal mythological language from underlying spiritual or existential truths
  4. Usage: theological and biblical studies usage; associated with Rudolf Bultmann's hermeneutical approach

Examples