This work investigates how the religious practices and beliefs of ordinary laypeople in Southern France evolved between the 11th and 14th centuries. John H. Arnold, a specialist in medieval history, utilizes a combination of inquisitorial records, hagiography, and ecclesiastical documents to reconstruct the lived experience of faith. He argues that the transformation of lay religion during this period was as significant as the later shifts observed during the Reformation, challenging the traditional focus on institutional heresy trials.

Scholars frequently cite this text as a vital contribution to the social history of medieval religion, noting its ability to humanize the subjects of inquisitorial records. Experts highlight the author's methodological rigor in navigating the biases of the source material to reveal authentic lay perspectives.