By Fr. John Zuhlsdorf, OnePeterFive - This Sunday we complete the Octave of Easter. In the post-Conciliar calendar, it is creatively called the “Second Sunday of Easter” or, since John Paul II was greatly interested in the theme, “Divine Mercy Sunday”. However, historically we call the Easter Octave, “Low Sunday”, probably because it was celebrated with less pomp than Easter. It is called “Thomas Sunday”, because that Apostle is highlighted in the Gospel reading.