At his first general audience, the Pope spoke about why he chose the name Benedict:
"The name Benedict evokes, moreover, the extraordinary figure of the great "patriarch of Western monasticism," St. Benedict of Nursia, co-patron of Europe together with Saints Cyril and Methodius. The gradual expansion of the Benedictine Order founded by him has had an enormous influence on the spread of Christianity on the whole Continent. Because of this, St. Benedict is much venerated in Germany and, in particular, in Bavaria, my native land. He constitutes a fundamental point of reference for the unity of Europe and a strong reminder of the inalienable Christian roots of its culture and its civilization."
The Constitution proposed for the European Union deliberately omits mention of Christianity in Europe's development. Its framers evidently think that even to acknowledge the historical role of Christianity in Europe would violate the principle of secularism.
It looks like the Pope is concerned about re-evangelizing Europe.