Celebrating Mass in the Catholic Church

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Order of the Catholic Mass - Source: USCCB

http://www.usccb.org/prayer-and-worship/the-mass/order-of-mass/

Learn "the purpose"  or "the why" of different Mass parts

• The Procession
• The Greeting
• The Penitential Rite
• Confiteor, "I Confess"
• The Gloria
• The Liturgy of the Word (1st Reading, 2nd Reading and Gospel)
• The Homily
• The Creed and Intercessions
• Preparation of the Altar
• The Collection
• The Preparation of Faith
• The Liturgy of the Eucharist
• Concluding Rites

"Do this in memory of me." 

When we celebrate the Mass and Eucharist, we participate in the supreme mystery of our faith, the memorial of Christ's passion, death, and resurrection.