"  For the liturgy, "through which the work of our redemption is accomplished," most of all in the divine sacrifice of the Eucharist, is t
he outstanding means whereby the faithful may express in their lives, and manifest to others, the mystery of Christ and the real nature
of the true Church. It is of the essence of the Church that she be both human and divine, visible and yet invisibly equipped, eager to
act and yet intent on contemplation, present in this world and yet not at home in it; and she is all these things in such wise that in her
the human is directed and subordinated to the divine, the visible likewise to the invisible, action to contemplation, and this present world
to that city yet to come, which we seek ". (Dogmatic Constitution Sacrosanctum Concilium, n.2- Paul VI, 1963)