"Great is the mystery of the faith!" The Church professes this mystery in the Apostles' Creed and celebrates it in the sacramental liturgy, so that the life of the faithful may be conformed to Christ in the Holy Spirit to the glory of God the Father. This mystery, then, requires that the faithful believe in it, that they celebrate it, and that they live from it in a vital and personal relationship with the living and true God. This relationship is prayer." 

Catechism of the Catholic Church, 2558

"A community needs a soul if it is to become a true home for human beings. You.. the people, must give it this soul." 

St. Pope John Paul II

“Know, O Christian, that the Mass is the holiest act of religion. You cannot do anything to glorify God more, nor profit your soul more, than by devoutly assisting at it, and assisting as often as possible.”

St. Peter Julian Eymard