22 It is pleasant for us to recall the examples and the remarkable virtues of Boniface, and especially the friendship and unity which we wanted to celebrate in this letter. Yes, he lives among you; indeed he lives in glory. He lives as "the representative of the Roman Catholic Church for Germany." He still performs his mission by his prayers, his example, and the memory of his works by which "he who is dead still speaks." He as a faithful prophet and herald of Our Lord and Savior Jesus, seems to exhort and invite his people to unity with the Roman Church. Christ himself beseeches his people "to be one."
Source: In Hac Tanta (Vatican.va)