Book excerpt: This book opens a new interdisciplinary frontier between religion and theatre studies to illuminate what has been seen as the religious or spiritual nature of Polish theatre director Jerzy Grotowski’s work.The central argument is that through an embodied, materialist approach to religion, and through a critical reading of the concepts of the New Age, a new understanding of Grotowski and religion can be developed. This is a vital reference for academics in both Religion and Theatre Studies that have an interest in the spiritual aspects of Grotowski’s work.