The stained glass windows in the nave of the Oratory (as well as the paintings) include flora and fauna mentioned in the Songs of Songs, as well as the Beatitudes. The six nave windows (will) have two saints depicted in each: André Bessette & Giana Beretta Molla, Louis & Zélie Martin, Stanley Rother & Maria Theresia Bonzel, Juan Diego & Josephine Bakhita, Vincent de Paul & Louise de Marillac, and Pier Giorgio Frassati & Clare of Assisi. These saints presented themselves for their historical connection to---and representative missions blessing---St. Vincent de Paul Parish. The windows in the Oratory sacristy are of St. Therese the Little Flower, and those in the restrooms are of the various prior church buildings of our Parish.
Under the carved Gospel proclamation, on either side of it on the back wall of the Oratory, are paintings of St. Joseph of Nazareth and St. Joseph of Arimathea. The former saint lovingly adored the Body of the Lord in the helplessness of infancy and the latter lovingly adored the Body of the Lord in its helplessness as a corpse.