This work investigates the philosophical validity of theism and the relationship between religious belief and human psychological experience. Clement C. J. Webb, a noted scholar of the history of philosophy, utilizes the framework of the Forwood Lectures to critically examine the intellectual foundations of theistic thought. He evaluates the arguments for the existence of God while addressing the emerging psychological theories of the early 20th century that sought to explain religious belief as a byproduct of human mental processes.

Scholars of 20th-century religious philosophy recognize this text as a significant contribution to the dialogue between traditional theology and the rise of secular psychology. Readers frequently note the academic density of the prose, which reflects the rigorous intellectual climate of the interwar period at Liverpool University.