Liturgical Silence

Sacrosanctum Concilium # 30 (Dec 1963):

To promote active participation, the people should be encouraged to take part by means of acclamations, responses, psalmody, antiphons, and songs, as well as by actions, gestures, and bodily attitudes. And at the proper times all should observe a reverent silence.

Musicam sacram # 17 (Mar 1967):

At the proper times, all should observe a reverent silence [footnote points to above]. Through it the faithful are not only not considered as extraneous or dumb spectators at the liturgical service, but are associated more intimately in the mystery that is being celebrated, thanks to that interior disposition which derives from the word of God that they have heard, from the songs and prayers that have been uttered, and from spiritual union with the priest in the parts that he says or sings himself.

General Instruction of the Roman Missal # 45 (Mar 2003):

Sacred silence also, as part of the celebration, is to be observed at the designated times [footnote points to both above]. Its purpose, however, depends on the time it occurs in each part of the celebration. Thus within the Act of Penitence and again after the invitation to pray, all recollect themselves; but at the conclusion of a reading or the homily, all meditate briefly on what they have heard; then after Communion, they praise and pray to God in their hearts.

Even before the celebration itself, it is commendable that silence to be observed in the church, in the sacristy, in the vesting room, and in adjacent areas, so that all may dispose themselves to carry out the sacred action in a devout and fitting manner.

Spiritus Et Sponsa (Dec 4, 2003):

13. One aspect that we must foster in our communities with greater commitment is the experience of silence. We need silence "if we are to accept in our hearts the full resonance of the voice of the Holy Spirit and to unite our personal prayer more closely to the Word of God and the public voice of the Church".[32] In a society that lives at an increasingly frenetic pace, often deafened by noise and confused by the ephemeral, it is vital to rediscover the value of silence. The spread, also outside Christian worship, of practices of meditation that give priority to recollection is not accidental. Why not start with pedagogical daring a specific education in silence within the coordinates of personal Christian experience? Let us keep before our eyes the example of Jesus, who "rose and went out to a lonely place, and there he prayed" (Mk 1: 35). The Liturgy, with its different moments and symbols, cannot ignore silence.