From ancient Greek metaphysics to contemporary particle physics, the search for understanding has led humankind down a wondrous path. Puzzling matters have surfaced along the way, introducing questions with far-reaching implications. How is one to account for the origination of the universe and that of life; does God lie behind these arisings, or can science alone illuminate the facts? What preserves the identity of persons through time and change? Attempts to answer such questions eventually coalesced into a pair of disparate worldviews, set forth in existential terms, and it cannot be the case that both are right. A book of discovery, God and the Rational Mind embarks on a journey to determine the span of reality and how knowledge of it is possible.