An analogy I once read was of a garment being sewn. The same stitch is repeated until the garment becomes a whole.
I find it interesting that when somebody complains about a prayer being repetitive, they choose the rosary instead of looking at its richness, purpose, and history. It is a comptemplative prayer that rose out of the peasantry at a time when the common man wanted to join the monks in their more formal praying of the psalms. They lacked the time. The rosary could be prayed while continuing to work in the fields. There are many books written about the graces that come from praying the rosary.
Let’s digress into the Jesus Prayer that comes directly from Scripture. It too has been prayed repetitively through the ages. “Jesus, Son of David, have mercy on me, a sinner” as a means to grow closer to God.
In the parable of the plebican and publican, the only prayer the plebican prayed was one calling for God’s mercy. It is he who in simplicity repeated his cry who went home justified; not the publican who pridefully boasted of his holiness.
God does not look for us to compose lofty prayers each and every time we pray. There is nothing wrong with using the same formulas which we are familiar. What St. Theresa of Avila, and others including my first grade nun warned against was rushing our prayers. Pray from your heart Take time to understand the words that you are praying.
Prayer is after all, lifting our hearts and minds to God. Whether we focus on a simple Our Father, the prayer that Christ himself taught us to pray, or meditate on the mysteries of the gospel as we pray the rosary.