Worship and devotion
Prayer of the Church
In the Constitution on the Sacred Liturgy (Second Vatican Council ) (04.12.1963) we read:
By the venerable tradition of the universal Church, Lauds as Morning Prayer and Vespers as Evening Prayer are the two hinges on which the daily office turns; hence they are to be considered as the chief hours and are to be celebrated as such. (89(a))
The divine office, because it is the public prayer of the Church, is a source of piety, and nourishment for personal prayer. And therefore priests and all others who take part in the divine office are earnestly exhorted in the Lord to attune their minds to their voices when praying it. The better to achieve this, let them take steps to improve their understanding of the liturgy and of the bible, especially of the psalms. (90)
… the laity, too, are encouraged to recite the divine office, either with the priests, or among themselves, or even individually. (100) From CHRISTUS REX ET MUNDI http://www.christusrex.org/www1/CDHN/v8.html
1175: The Liturgy of the Hours is intended to become the prayer of the whole
People of God. In it Christ himself "continues his priestly work through his
Church." His members participate according to their own place in the Church and
the circumstances of their lives: priests devoted to the pastoral ministry,
because they are called to remain diligent in prayer and the service of the
word; religious, by the charism of their consecrated lives; all the faithful as
much as possible: "Pastors of souls should see to it that the principal hours,
especially Vespers, are celebrated in common in church on Sundays and on the
more solemn feasts. The laity, too, are encouraged to recite the divine office,
either with the priests, or among themselves, or even individually."51
1178: The Liturgy of the Hours, which is like an extension of the Eucharistic
celebration, does not exclude but rather in a complementary way calls forth the
various devotions of the People of God, especially adoration and worship of the
Blessed Sacrament.
http://www.vatican.va/archive/ccc_css/archive/catechism/p2s2c1a3.htm