On Sunday, November 27, 2011, the First Sunday of Advent, we began changes in the Eucharistic Liturgy, the Mass. We have prepared for these changes which will provide us with an opportunity to examine and renew our celebration of the Eucharistic Liturgy that stands at the heart of Catholic Christian Life, and to deepen our understanding and appreciation of the Liturgy, nurture liturgical practices that will lead to fuller liturgical participation, and celebrate the Liturgy with renewed purpose.