First Rose - The Prayers of the Rosary

The Rosary is made up of two things: mental prayer and vocal prayer. In the Rosary mental prayer is none other than meditation of the chief mysteries of the life, death and glory of Jesus Christ and of his blessed Mother. Vocal prayer consists in saying fifteen decades of the Hail Mary, each decade headed by an Our Father, while at the same time meditating on and contemplating the fifteen principal virtues which Jesus and Mary practised in the fifteen mysteries of the Rosary.

In the first five decades we must honour the five Joyful Mysteries and meditate on them; in the second five decades, the Sorrowful Mysteries; and in the third group of five, the Glorious Mysteries. So the Rosary is a blessed blending of mental and vocal prayer by which we honour and learn to imitate the mysteries and the virtues of the life, death, passion and glory of Jesus and Mary.

- from The Secret of the Rosary, bySaint Louis-Marie Grignion de Montfort