"Faith grows when it is well expressed in celebration. Good celebrations foster and nourish faith. Poor celebrations may weaken and destroy it.

To celebrate the liturgy means to do the action or perform the sign in such a way that its full meaning and impact shine forth in clear and compelling fashion. Since liturgical signs are vehicles of communication and instruments of faith, they must be simple and comprehensible. Since they are directed to fellow human beings, they must be humanly attractive."

Music in Catholic Worship
United States Conference of Catholic Bishops