The Introductory Rites
When considering the Introductory Rites—the Entrance, Greeting, Penitential Act, Glory to God, and the Collect—I like to think of the garage.
The garage is part of the house’s architecture but often looks like an add-on. The garage is a part of the house, but it isn’t the place where you live or call home. It’s the usual way you enter the house, though sometimes you go in through a different door.
The two main parts of the Mass are the Liturgy of the Word and the Liturgy of the Eucharist. The Introductory Rites are not equal in weight to those two main parts, but they are still a part of the Mass. Missing them means missing some of the Mass. (To switch metaphors for a moment: they are not like the trailers for upcoming movies that you don’t mind missing before the “real” movie begins. They are more like the opening scene and credits of the movie you came to see. You do miss something if you miss them.)
The Introductory Rites are preparation for what is to come. I like the description given by Msgr. Joseph DeGrocco in A Pastoral Commentary on the General Instruction of the Roman Missal:
The nature of all these elements is that of beginning, introduction, and preparation. Their purpose is to gather the faithful together and to establish a sense of unity and communion. As the faithful have come from their individual homes and lives, each person with his or her cares and concerns, and each with the prayers and intentions he or she brings to the celebration of the Mass, these rites strive to create a sense of gathering as one. In this way, the faithful will be prepared to listen to the Word of God fruitfully and to celebrate the Eucharist. (32)
These rites are the usual way that the Mass begins, but there are some times when they are not celebrated—particularly when another rite takes place at the beginning of Mass.
Many of us are familiar with funerals. At the start of a funeral Mass, the body is greeted, sprinkled with holy water, and the white pall is placed on it. The next thing is the Collect—the prayer following, “Let us pray.” The Greeting, Penitential Act, and Glory to God are omitted.
There are other times this happens. One is Palm Sunday, when palms are blessed at the beginning of Mass. On that day, too, the Introductory Rites are omitted.
