"A vibrant liturgical life has two primary pillars. First, it depends on this renewed notion of priesthood. A body of people who encounter God through Christ the high priest can be transformed by God into people made worthy of representing him in and to the world.
Ordained priests who celebrate liturgy in such a way that it informs people of their priestly identity perform the ministry of building up the body of Christ by enabling the people to exercise their priesthood.
As faithful become aware of their own holy vocation, they are drawn to the liturgy as the source of divine grace that gives them the gift of the Spirit needed to exercise priesthood. Second, active participation in the liturgy is a natural consequence of exercising the lay priesthood.
The reverse order of this relationship is equally powerful: as people actively engage the liturgy, they are informed of their priestly identity a fortiori.
In other words, the two pillars of priesthood and active participation in the liturgy are inseparable; one cannot thrive without the other, and a diminishment of either pillar results in the impoverishment of the liturgy."
From Chapter 6 of "Liturgical Reform After Vatican II: the Impact on Eastern Orthodoxy" by Nicholas Denysenko
