Jeffrey John Kripal es profesor de filosofía y religiones en la Universidad de Rice en Houston. De su obra cabe destacar: Kali& x02019;s Child (1995), Roads of Excess, Palaces of Wisdom: Eroticism and Reflexivity in the Study of Mysticism (2001), The Serpent& x02019;s Gift: Gnostic Reflections on the Study of Religion (2006), Authors of the Impossible: The Paranormal and the Sacred (2010) y Super Natural: A New Vision of the Unexplained (2016)