From YOUCAT, fact 497:
497: Why does it help to turn to the saints when we pray?
Saints are people who are aflame with the Holy Spirit; they keep God’s fire burning in the Church. Even during their earthly life, the saints prayed ardently, in a way that was contagious. When we are close to them, it is easy to pray. Of course, we never worship saints; we are allowed, though, to call on them in heaven, so that they may present petitions for us at the throne of God.
Around the great saints developed particular schools of SPIRITUALITY, which like the colors of the spectrum all point to the pure light of God. They all start with a fundamental element of the faith, so as to lead – in each case by a different gate – to the center of the faith and devotion to God. Thus Franciscan spirituality starts with poverty of spirit, Benedictine spirituality with the praise of God, and Ignatian spirituality with discernment and vocation. A spirituality to which someone feels attracted, depending on his personal character, is always a school of prayer.