Saint John Paul II on the Rosary of the Virgin Mary

The Rosary, though clearly Marian in character, is at heart a Christ-centered prayer. It has all the depth of the gospel message in its entirety. It is an echo of the prayer of Mary, her perennial Magnificat for the work of the redemptive Incarnation which began in her virginal womb. With the Rosary, the Christian people sits at the school of Mary and is led to contemplate the beauty on the face of Christ and to experience the depths of his love. Through the Rosary the faithful receive abundant grace, as though from the very hands of the Mother of the Redeemer. 

— St. John Paul II, from the apostolic letter Rosarium Virginis Mariae