Vespers, Matins etc are part of the Liturgy of the Hours. They are as much liturgy as is the mass. However, anyone can preside over the Liturgy of the Hours. The tradition is that the presider is a priest, deacon or a religioius superior who is not a priest. But it can be a lay person too.
The Rosary, the Chaplet and other prayers cannot take the place of the Liturgy of the Hours. The Rosary is not equivalent. It is a public devotion, but not the official prayer of the Church, as is the Liturgy of the Hours. Even Benediction with the Blessed Sacrament cannot trump the Liturgy of the Hours. The Liturgy of the Hours flows from the mass.
The reason that it is not celebrated in public in the West, as much as it is in the East, is because of schedules. Western parishes tend to have more evening activities than Eastern parishes. Therefore, in Western parishes, the Liturgy of the Hours is celebrated in the religious houses or privately by deacons, priests, and bishops. There are some parishes that do not have a heavy evening schedule and they do celebrate Vespers with the congregation several times a week.
Some religious communities also have a rule among themselves. They do not pray the Liturgy of the Hours with the laity to avoid being contaminated by the laity. These religious communities serve in parishes, but they celebrate the Liturgy of the Hours in their enclosure. In some houses the choir is off to the side of the main body of the church so that you can hear the Liturgy of the Hours, but you can’t participate with the religious.
This is just an aside, but here is a good example of a situation where the liturgy is deliberately hidden from the laity. The Carthusians do not celebrate masss or the Liturgy of the Hours where the laity can see them or hear them. If you visit their houses, you may not go near their chapel. They have a separate chapel for the visitors. For them, the liturgy is the most sacred moment in the life of teh Carthusian and it is not to be shared with anyone. St. Bruno wrote this into their rule.
The Franciscans and Benedictines will usually pray the Liturgy of the Hours in a chapel that is open to the public.
Fraternally,
Br. JR, OSF
