However, its observance as a fast day is ancient as the Catholic Encyclopedia states, "Pope Nicholas I (d. 867), in his answer to the Bulgarians, speaks of the fast on the eves of Christmas and of the Assumption...The Synod of Seligenstadt (1022) mentions vigils on the eves of Christmas, Epiphany, the feast of the Apostles, the Assumption of Mary, St. Laurence, and All Saints, besides the fast of two weeks before the Nativity of St. John."
As a result, I encourage everyone to keep this traditional day of fasting and abstinence in honor of the Feast of our Lady's Assumption, that is celebrated tomorrow on August 15th.
Ps. 44:13, 15-16 All the rich among the people shall seek your favor. Behind her the virgins shall be led to the king; her friends shall be brought to you with gladness and joy. Ps. 44:2. My heart overflows with good tidings; I sing my song to the king. V. Glory be . . .
COLLECT - O God, You willed to choose the womb of Blessed Mary as Your dwelling place. Grant that we may joyfully celebrate her feast under the shield of her protection; who lives and rules with God the Father . . .
As the vine I have brought forth a pleasant odour: and my flowers are the fruit of honour and riches.I am the mother of fair love, and of fear, and of knowledge, and of holy hope. In me is all grace of the way and of the truth, in me is all hope of life and of virtue. Come over to me, all ye that desire me, and be filled with my fruits. For my spirit is sweet above honey, and my inheritance above honey and the honeycomb. My memory is unto everlasting generations. They that eat me, shall yet hunger: and they that drink me, shall yet thirst. He that hearkeneth to me, shall not be confounded: and they that work by me, shall not sin. They that explain me shall have life everlasting.
You are blessed and venerable, O Virgin Mary, for without the loss of your virginity you became the Mother of our Saviour. V. O Virgin Mother of God, He whom the whole world cannot contain enclosed Himself in your womb and was made man.
At that time, as Jesus spoke these things, a certain woman from the crowd, lifting up her voice, said to him: "Blessed is the womb that bore thee and the paps that gave thee suck." But he said: "Yea rather, blessed are they who hear the word of God and keep it. "
Blessed are you, O Virgin Mary, who bore the Creator of all things. You brought forth your own Creator, and yet you remain a virgin forever.
SECRET O Lord, may the intercession of the Mother of God bring our offerings to Your merciful attention, for You took her out of this world that she might plead with confidence before Your throne for the forgiveness of our sins. Through the same Jesus Christ Your Son, our Lord, who lives and rules with You in the unity of the Holy Spirit, one God forever and ever.
Blessed is the womb of the Virgin Mary, which bore the Son of the eternal God.
POST COMMUNION - Support us in our weakness, O merciful God. May we rise again from our sins through the intercession of the Holy Mother of God, whose feast we are preparing to celebrate. Through the same Jesus Christ, Your Son, our Lord, who lives and rules with You in the unity of the Holy Spirit, one God forever and ever.
Sources: Saint Andrew Daily Missal and the Marian Missal , 1945