The central miracle asserted by Christians is the Incarnation. They say that God became Man. Every other miracle prepares the way for this or results from this. This is the key statement of Miracles in which C. S. Lewis shows that a Christian must not only accept but rejoice in miracles as a testimony of the unique personal involvement of God in his creation. Using his characteristic lucidity & wit to develop his argument Lewis challenges the rationalists agnostics & deists on their own grounds & makes out an impressive case for the irrationality of their assumptions.