Interpretations of Anselms Proslogion range between the extremes of rationalism and fideism because of the challenge of unifying its philosophical and devotional aspects. In this book, Bayer argues that a monastic interpretation or an interpretation that takes seriously the intellectual significance of our existential commitments offers a powerful compromise. Through an extensive study of Anselms spiritualty, especially as it is manifested in his letters and homiletic works, coupled with a profound study of Anselms philosophy of language in the De grammatico and Monologion , Bayer aims to reveal the Anselmian unity of life and thought, and thereby also the harmony between faith and reason. In this way, he defends the Proslogion as a unified and probative argument.