 The three books of On Learned Ignorance thus represent a series of powerful proposals for reinterpreting Christian reality. Throughout Nicholas uses metaphors such as the coincidence of opposites, absolute/contracted and enfolding/unfolding to relate God and creation. His proposals are established by seeking out parallels between the infinite divine Original and limited created images and by drawing out the implications of these parallels. This book is neither medieval Aristotelian scholastic disputation nor later Cartesian rationalism, but its own kind of Christian Neoplatonic speculation that teases the philosophical imagination as much as it may frustrate any contemporary philosophical search for arguments or proofs. It is the coherence of the parallels or correspondences within the overall view of reality that gives Cusan metaphysics and Cusan metaphors their persuasive power.