“Continuing progress in the study of the holy Fathers has also shed upon the theology of the mystery of the Eucharist the light brought by the doctrine of such illustrious Fathers of Christian antiquity as St. Irenaeus, St. Ambrose, St. Cyril of Jerusalem, and St. John Chrysostom.” - GIRM #8 “This fountain – the Blessed Sacrament – is a fountain of light, shedding abundant rays of love.” - St. John Chrysostom