Saint Augustine says

Saint Augustine says that whenever we say the Our Father devoutly our venial sins are forgiven. The just man falls seven times a day, but in the Lord's Prayer he will find seven petitions which will both help him to avoid downfalls and will protect him from his spiritual enemies. Our Lord, knowing how weak and helpless we are, and how many difficulties we get into, made His Prayer short and easy to say, so that if we say it devoutly and often we can be sure that Almighty God will quickly come to our aid. I have a word for you, devout souls, who pay little attention to the prayer that the Son of God gave us Himself and asked us all to say: It is high time for you to change your way of thinking. You only like prayers that men have written---as though anybody, even the most inspired man in the whole world, could possibly know more about how we ought to pray than Jesus Christ Himself! You look for prayers in books written by other men almost as though you were ashamed of saying the prayer that Our Lord told us to say. You have managed to convince yourself that the prayers in these books are for scholars and for rich people of the upper classes and that the Rosary is only for women and children and the lower classes. As if the prayers and praises which you have been reading were more beautiful and more pleasing to God than those which are to be found in the Lord's Prayer! It is a very dangerous temptation to lose interest in the prayer that Our Lord gave us and to take up prayers that men have written instead. Not that I disapprove of prayers that the saints have written so as to encourage the faithful to praise God, but it is not to be endured that they should prefer the latter to the Prayer which was uttered by Wisdom Incarnate. If they ignore this Prayer it is just as though they pass up the spring to go after the brook and refusing the clear water, drink dirty water instead. Because the Rosary made up of the Lord's Prayer and the Angelic Salutation, is this clear and ever flowing water which comes from the Fountain of Grace, whereas other prayers which they look for in books are nothing but tiny streams which spring from this fountain. People who say Our Lord's Prayer carefully, weighing every word and meditating upon it, may indeed call themselves blessed for they find therein everything that they need or can wish for. When we say this wonderful prayer we touch God's heart at the very outset by calling Him by the sweet name of Father---Our Father. He is the dearest of fathers: all-powerful in His creation, wonderful in the way He maintains the world, completely lovable in His Diving Providence,---always good and infinitely so in the Redemption. We have God for our Father so we are all brothers--and heaven is our homeland and our heritage. This should be more than enough to teach us to love God and our neighbor and to be detached from the things of this world.