In this study, C. S. Lewis's books, essays, stories, and poems, in addition to biographies and essays written about Lewis, were read in an attempt to understand the relationship between Lewis's spiritual quest and his total health. The spiritual quest is defined as the search for the ultimate truth and meaning of life. For Lewis, who was a Christian, the quest for the Spirit is a journey toward God-Jesus-the Holy Spirit. Health is defined as total experience; the interrelationship of the body, mind, and spirit with all there is, has been, and will be. Health is considered a changing perception, not a fixed state. The dimensions of Lewis's health—physical, psychological, social, and spiritual—are studied. Lewis's physical states, literary works, literary themes, friendships, ethics, marriage, and views on religion are considered as each relates to his determination to know and to love God. For Lewis, anything without God is nothing. God is the creator of all living things and all matter. He is the inventor of all loves and is Love. In Lewis's opinion, one's health is in direct proportion to one's love for God. When man loves God he is healthy, the more he loves Him the healthier, the less he loves Him the less healthy.