The Angelus is a devotion to the Incarnation - where God "became flesh" when he was miraculously conceived in the womb of the Virgin Mary. Beginning in the 11th Century, the Angelus has been traditionally recited in convents and monasteries three times daily, at 6:00 AM, Noon, and 6:00 PM. The tradition continues today in some churches and homes. It is typically accompanied by the ringing of the Angelus bell.
The Angleus includes a series of verses (V) and responses (R), separated by a Hail Mary, and concludes with a final prayer.
V. The Angel of the Lord declared unto Mary,
R. And she conceived of the Holy Spirit.
V. Behold the handmaid of the Lord.
R. Be it done unto me according to your word.
V. And the Word was made flesh.
R. And dwelt among us.
V. Pray for us, O holy Mother of god,
R. That we may be made worthy of the promises of Christ.
Let us pray.
Pour forth, O Lord, Your Grace into our hearts: that we, to whom the Incarnation of Christ your Son was made known by the message of an Angel, may by His passion and cross be brought to the glory of His Resurrection, through the same Christ our Lord.