 This third book realigns the order of Christian metaphysics so that the God-man stands between God and the rest of creation, for it is through the mediation of the Incarnate Word that creatures are made and creatures return to their source. In Book I, Nicholas proposed that there is no proportion or measure between the infinite and the finite that will enable us to grasp the Infinite God or even God’s contracted image in the natural universe. This is what learned ignorance establishes for and contributes to human wisdom. Yet the historic reality of Jesus Christ has a theoretical role to play in interpreting Nicholas’ metaphysical vision. The Cusan Christ stands as a more adequate norm and measure for theory and practice. Jesus Christ is the historical human image of the Absolute One beyond our ken and thus the paradigm that reveals our creaturely connection with the infinite God. Christ is the disclosure in time of what God is. In this way learned ignorance points to Jesus Christ as the medium, the measure and mediator between finite and infinite, and, as well, the concrete norm for what human beings may become.