It is put down somewhere else in this book that printed prayers are meant to help us to pray — we can pray without them and often do, but sometimes a book is a help, because it puts into our minds the right kind of thoughts, and the right kind of wishes into our hearts; and that is the great thing in prayer which, as you know, means raising up our minds and hearts to God. A rosary is a whole prayer-book in itself, and much easier to carry about; and it can be used at times and in places where a book is out of the question. You know how to use your beads, and if you just think, you will see how they come to be as good as a prayer-book.
The Rosary is, of course, a prayer to our Lady — it is made up chiefly of “Hail Marys.” But when we are saying it we are really getting our Blessed Lady herself to teach us about the life and death and resurrection of her Son, and thus to put into our minds the right kind of thoughts, and the right kind of wishes into our hearts. You know the fifteen “mysteries” of the Rosary, and how they bring before us what our Lord did and suffered for our sake. Thinking of them makes us remember His goodness and love for us, and the example He set for us to follow; and we wish that we could love Him more, and that we had not offended Him, and we make up our minds to try and serve Him faithfully. These are the right kind of thoughts and wishes, and all the while our prayer is being offered to our Lord by the hands of His Blessed Mother, who helps and pleads for her children who love and honour her for Jesus’ sake.
Adapted from The Catholic Scout’s Prayer Book, London: The Catholic Truth Society (1912)