An Mass in honor of our Blessed Virgin Mary may be celebrated on Saturday morning when there is no solemnity or feast for another saint. This is called an “Optional Memorial to the Blessed Virgin Mary.” The priest has the option to celebrate the Mass in honor of Mary or the regular Mass. It is up to the priest. There are several sets of entrance antiphons, opening prayers (collect), prayers over the offerings, communion antiphons and prayer after communion which the priest may choose from. A quick glance at the new Missal looks like he may have as many as 8 different sets of prayers and antiphons in ordinary time alone. I think this is wonderful.
The parish I belong to is consecrated to Mary. Our priests never miss an opportunity to celebrate Mass in honor of Our Lady. Somone at our Church donated a chalice studded with blue stones to be used specifically for Masses in honor of Our Lady.
Here is an example of one of the choices for the “Commons” in ordinary time in the Missal.
***Entrance Antiphon: **Hail, Holy Mother, who gave birth to the King who rules heaven and earth for ever.
Collect (opening prayer): Grant, Lord God, that we, your servants, may rejoice in unfailing health of mind and body, and, through the glorious intercession of the Blessed Mary ever-Virgin, may we be set free from the present sorrow and come to enjoy eternal happiness. Through our Lord Jesus Christ, your Son, who lives and reigns with you in the unity of the Holy Spiirt, one God, for ever and ever.
Prayer over the Offerings: Receive, O Lord, we ask, the prayers of your people with the sacrificial offerings, that, through the intercession of the Blessed Mary, the Mother of your Son, no petition may go unanswered, no request be made in vain. Through Christ our Lord.
Communion Antiphon: Blessed is the womb of the Virgin Mary, which bore the Son of the eternal Father.
Prayer After Communion: As we recieve this heavenly Sacrament, we beseech, O Lord, your mercy, that we, who rejoice in commemorating the Blessed virgin Mary, may by imitating her serve worthily the mystery of our redemption. Through Christ our Lord. *
There are seven more like this listed, and ones specifically for Advent, Lent, Christmas time and Easter time.
-Tim-