First we must understand that they are meditations. When Catholics recite the twelve prayers that form a decade of the rosary, they meditate on the mystery associated with that decade. If they merely recite the prayers, whether vocally or silently, they’re missing the essence of the rosary. It isn’t just a recitation of prayers, but a meditation on the grace of God. Critics, not knowing about the meditation part, imagine the rosary must be boring, uselessly repetitious, meaningless, and their criticism carries weight if you reduce the rosary to a formula. Christ forbade meaningless repetition (Matt. 6:7), but the Bible itself prescribes some prayers that involve repetition. Look at Psalms 136, which is a litany (a prayer with a recurring refrain) meant to be sung in the Jewish Temple. In the psalm the refrain is "His mercy endures forever." Sometimes in Psalms 136 the refrain starts before a sentence is finished, meaning it is more repetitious than the rosary, though this prayer was written directly under the inspiration of God.
