The liturgy is the summit toward which the activity of the Church is directed; it is also the font from which all her power flows.
-Catechism of the Catholic Church, 1074

This is the Mass

The Mass: Christ on the Cross

The Mass: The Sacrifice of the New Covenant

The Mass: The Sacrifice of the Church

The Mass: In the Life of Each Christian

The Mass: External Participation

The Mass: Communion and Thanksgiving

Guidelines for Receiving Communion

Order of the Mass