The imaginative man in me is older, more continuously operative, and in that sense more basic than either the religious writer or the critic. It was he who made my first attempt (with little success) to be a poet. It was he who, in response to the poetry of others, made me a critic, and in defense of that response, sometimes a critical conversationalist. It was he who, after my conversion led me to embody my religious belief in symbolic or mythopoeic forms, ranging from Screwtape to a kind of theologised science-fiction. And it was, of course, he who has brought me, in the last few years to write the series of Narnian stories for children; not asking what children want and then endeavoring to adapt myself (this was not needed) but because the fairy-tale was the genre best fitted for what I wanted to say.
C.S. Lewis as quoted in Alan Jacobs’ The Narnian (The Life and Imagination of C.S. Lewis)