Lewis’ epistemology is adequate that does not include both reason and imagination in their respective functions. The epistemological function of reason and imagination for Lewis is rooted in his own experience. Reason and imagination, beginning early in his life and often pulling in opposite directions, were the controlling elements in Lewis’ intellectual and spiritual pilgrimage. Imaginative life came natural to Lewis: the Sehnsucht, the longing and desire for Joy, fairyland, and Norse and Celtic