He invited the congregation to look around the cathedral.
I would like to draw your attention to a few aspects of this beautiful structure which I think can serve as a starting point for a reflection on our particular vocations within the unity of the Mystical Body.
The first has to do with the stained glass windows, which flood the interior with mystic light. From the outside, those windows are dark, heavy, even dreary. But once one enters the church, they suddenly come alive; reflecting the light passing through them, they reveal all their splendor. Many writers -- here in America we can think of Nathaniel Hawthorne -- have used the image of stained glass to illustrate the mystery of the Church herself. It is only from the inside, from the experience of faith and ecclesial life, that we see the Church as she truly is: flooded with grace, resplendent in beauty, adorned by the manifold gifts of the Spirit.
This grand tradition of the arts as teaching tools fell into disrepute during the Reformation, and took another, almost fatal blow after Vatican II. But the human need for beauty can not be suppressed or diverted. Benedict is showing us the way forward by focusing on the timeless realities of the human experience and the deepest needs of the human soul.