"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.
"Prayer is the raising of one's mind and heart to God or the requesting of good things from God.” But when we pray, do we speak from the height of our pride and will, or "out of the depths" of a humble and contrite heart? He who humbles himself will be exalted; humility is the foundation of prayer, Only when we humbly acknowledge that "we do not know how to pray as we ought,” are we ready to receive freely the gift of prayer. "Man is a beggar before God."
"If you knew the gift of God!" The wonder of prayer is revealed beside the well where we come seeking water: there, Christ comes to meet every human being. It is he who first seeks us and asks us for a drink. Jesus thirsts; his asking arises from the depths of God's desire for us. Whether we realize it or not, prayer is the encounter of God's thirst with ours. God thirsts that we may thirst for him. CCC 2558-2560