The days of the Easter Octave retain a special character throughout the Roman Rite. This is true of both the Ordinary Form and the Extraordinary Form, and also of Divine Worship: The Missal, which preserves this sacred time in accordance with ancient practice, whilst also making use of certain Anglican translations and practices.
Overview of the Easter Octave
If the Paschal Vigil is “the mother of all vigils,” then the Easter Octave is to be considered the mother of all octaves. Its origins predate even those of the Octave of the Nativity of the Lord, of the Epiphany, and of Pentecost, and of course those of later feasts such as Corpus Christi. Blessed Ildefonso Schuster goes so far as to say that the octave “was characteristic of the Easter festivities.” Dom Prosper Guéranger says, with equal eloquence, “So ample and so profound is the mystery of the glorious Pasch, that an entire week may well be spent in its meditation.” With an overview of its associated practices, we can see how right they are.