The Form and Matter of the Rosary
The Rosary consists in the recitation, in honor of the Most Holy Virgin Mary, Mother of God, of the Angelic Salutation one hundred and fifty times, distributed into fifteen decades; each decade being preceded by the Lord's Prayer and accompanied by meditation on one of the principal mysteries of our Divine Saviour and terminated by the doxology or "Glory be to the Father," etc. The vocal prayer is the matter, the body of this exercise; the meditation on the fifteen mysteries is the form, and, as it were, the soul of this prayer. The Rosary is divided into three parts; each part contains five mysteries and is called a chaplet. The first part consists of the five joyful mysteries; the second, of the five sorrowful; and the third, of the five glorious mysteries.