What struck me particularly during Mass was how it is so much about worshiping God, not celebrating the community or a performing priest.
Every liturgical action focuses on the Holy Sacrifice offered to God and our participation in that sacrifice. Those who say the congregation aren't involved are just silly. Is a student attending his professor's lecture not involved because he's silent? Is someone attending a symphony not engaged with the music because he's not a member of the orchestra?
Of course the congregation is involved -- more involved, in fact, than those who are focused on superficials like holding hands at the Our Father and singing Gather Us In.
