Today, Pope John Paul II, Vicar of Christ on Earth, makes pilgrimage to a remote and windswept village on the west coast of Ireland. One hundred years ago at the gable wall of the local church in Knock, Co Mayo, Mary the Mother of God appeared in a blaze of light to some 15 villagers. Their witness has transformed the village into a shrine for millions of pilgrims from all over the world, and the faithful in Ireland accept it as living proof of God's timely intervention in the lives of ordinary people. Everyman has been to Knock to try to understand the nature of this faith, and the visions it produces - visions which, to the eye of faith, are ' nothing wonderful at all'.