The 1718 Rule of the Brothers states that on this vigil, at 10:30 p.m., the Brothers go to the oratory, where a subject of meditation is read, and afterward go to the church, to be there for the beginning of Matins. They make their prayer there until the time for Mass, at which they receive Holy Communion. No doubt De La Salle wrote this meditation for that occasion. It is a good example of the Christ-centric character of Lasallian spirituality. The mystery of the Incarnation is key to the prayer of De La Salle. Photo by Dan Kiefer on Unsplash