The Rosary is second to the Mass in perfection of prayer. Through the Rosary Our Lady in perfect and infinite communion with the Holy Spirit gives the 7 graces that Perfect a soul. It is not enough to be sinless as Christ said to get Into Heaven. Our Lady gives one knowledge(2)understanding(3) of paschal mysteries that allow us to have wisdom(4) in fortitude(5) to counsel(6) others in conversion this allows both to be converted deeper in universal truth which is Piety(7). The fear(1) of not being One Holy And Apostolic propels one to pray the Rosary as asked AT FATIMA! In Short the Rosary allows us to Know Christ to Serve Christ and to Love Christ with ever fiber of our being being perfected in the 7 gifts.
Peter the Roman