Had yet another opportunity to mention my favorite paragraph in the Catechism of the Catholic Church the other day: 901, under "The participation of lay people in Christ's priestly office."
Think what a difference it might make in the Church if more people realized that if, as the priest is consecrating the gifts of bread and wine, they offer to God their life, with all its work and activities, successes and even failures and suffering (if these are "patiently born") their offering becomes a spiritual sacrifice that mingles with the bread and wine and makes it possible for their lives to be come holy actions of worship that "consecrate the world itself to God."
In other words, if we offer up our lives, with all their stuff, good and bad, that offering becomes part of the economy of grace, transformed by our faith in Christ. As we go forth into the world, Christ-like, our every action, now sanctified, is a form of praise and worship - a celebration of what it is to be human but always connected to the divine.
So, our offering up of ourselves at Mass makes both us and the world more holy. When were they going to tell us we had that kind of power?