"The Second Vatican Council strongly desired to preserve with care the authentic Liturgy, which flows forth from the Church’s living and most ancient spiritual tradition, and to adapt it with pastoral wisdom to the genius of the various peoples so that the faithful might find in their full, conscious, and active participation in the sacred actions–especially the celebration of the Sacraments–an abundant source of graces and a means for their own continual formation in the Christian mystery."
- Liturgiam Authenticam 1