CHILDREN'S literature and religion have a close but contentious relationship. The stories of Narnia, penned by the Belfast-born writer C.S. Lewis, have a Christian subtext which the author did not hide. Jesus Christ is represented by the character of Aslan, a powerful, generous lion who could compel human beings to be honest about themselves. In the seaside village of Rostrevor on Ireland's east coast, tourists are encouraged to explore the nearby forests to see where the writer got his spiritual and literary inspiration: it is the nearest they will ever get to Narnia.