St. Peter Damian must be numbered among the greatest of the Church's reformers in the Middle Ages, yes, even among the truly extraordinary persons of all times. In Damian the scholar, men admire wealth of wisdom: in Damian the preacher of God's word, apostolic zeal; in Damian the monk, austerity and self-denial; in Damian the priest, piety and zeal for souls; in Damian the cardinal, loyalty and submission to the Holy See together with generous enthusiasm and devotion for the good of Mother Church. He was a personal friend of Pope Gregory VII. He died in 1072 at the age of 65.
On one occasion he wrote to a young nephew, "If I may speak figuratively, drive out the roaring beasts from your domain; do not cease from protecting yourself daily by receiving the Flesh and Blood of the Lord. Let your secret foe see your lips reddened with the Blood of Christ. He will shudder, cower back, and flee to his dark, dank retreat."
In his poem, the Divine Comedy, Dante places Damian in the "seventh heaven." That was his place for holy people who loved to think about or contemplate God.
— Excerpted from The Church's Year of Grace, Pius Parsch
Symbols: Cardinal bearing a discipline in his hand; pilgrim holding a papal Bull, to signify his many legations.