What would you think of a father who took his daughter’s scribbled picture, tore it up, and told her not to draw again until she got it exactly right? No good father would do that!
God looks at us the way a good dad looks at his son or daughter. When it comes to prayer, our heavenly Father sees our hearts, our sincere desires to pray well, not just our final products in prayer. So even if our praying of the rosary ends up being just a bunch of scribbles, we should remember that God can write straight with our crooked lines. He can delight in our good intentions, our sincere desires to please him in prayer, even if our minds go someplace else. Having a good intention is more important than maintaining perfect attention throughout prayer.
— from the book Praying the Rosary Like Never Before: Encounter the Wonder of Heaven and Earth by Edward Sri