CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 922–926

922 From apostolic times Christian virgins and widows, called by the Lord to cling only to him with greater freedom of heart, body, and spirit, have decided with the Church's approval to live in the respective status of virginity or perpetual chastity "for the sake of the Kingdom of heaven."
923 "Virgins who, committed to the holy plan of following Christ more closely, are consecrated to God by the diocesan bishop according to the approved liturgical rite, are betrothed mystically to Christ, the Son of God, and are dedicated to the service of the Church." By this solemn rite (Consecratio virginum), the virgin is "constituted . . . a sacred person, a transcendent sign of the Church's love for Christ, and an eschatological image of this heavenly Bride of Christ and of the life to come."
924 "As with other forms of consecrated life," the order of virgins establishes the woman living in the world (or the nun) in prayer, penance, service of her brethren, and apostolic activity, according to the state of life and spiritual gifts given to her. Consecrated virgins can form themselves into associations to observe their commitment more faithfully.
925 Religious life was born in the East during the first centuries of Christianity. Lived within institutes canonically erected by the Church, it is distinguished from other forms of consecrated life by its liturgical character, public profession of the evangelical counsels, fraternal life led in common, and witness given to the union of Christ with the Church.
926 Religious life derives from the mystery of the Church. It is a gift she has received from her Lord, a gift she offers as a stable way of life to the faithful called by God to profess the counsels. Thus, the Church can both show forth Christ and acknowledge herself to be the Savior's bride. Religious life in its various forms is called to signify the very charity of God in the language of our time.