This work investigates the intellectual conflict between Catholic Modernism and Integralism during the late nineteenth and early twentieth centuries, specifically focusing on the tension between immanent experience and transcendent revelation. Gabriel Daly, a scholar of historical theology, examines the philosophical underpinnings of figures such as Maurice Blondel, Alfred Loisy, and Friedrich von Hügel. He analyzes how their attempts to reconcile faith with modern critical methods provoked a reactionary response from the Roman Catholic hierarchy, culminating in the formal condemnation of Modernism.

Scholars recognize this text as a definitive resource for understanding the nuances of the Modernist crisis within the Catholic Church. Readers frequently note the academic density of the prose, which provides a rigorous examination of the theological arguments presented by both the reformers and their Integralist opponents.