Today’s Feast which is commonly called ‘of the Miraculous Medal’, commemorates the manifestation of the Immaculate Virgin Mary to St Catherine Labouré DC. Our Blessed Lady showed St Catherine the pattern of a medal, that has worked many miracles since.
An English translation of the Collect at Mass is
O Lord Jesus Christ, who wast pleased that the most Blessed Virgin Mary Thy Mother, immaculate from her first conception, should shine resplendent with miracles beyond number: grant, that, ever imploring her patronage, we may attain the joys of everlasting life: Who livest and reignest….
As children of Mary, like St Catherine Labouré, we all should remember that Our Lady was given to us as our mother by Our Blessed Lord on the Cross. Jesus said to the disciple: Behold thy mother. And from that hour the disciple took her to his own. (John 19.27) His Mother became Mother of the Church.
A practice recommended by many confessors is to consecrate oneself to Our Lady. One prayer whereby we can do this is by saying the prayer below. Any priest will be able to bless the medal and invest you with it using the prayers from the Roman Ritual. After this you may wish to consecrate yourself to Our Lady.
Act of Consecration to Our Lady of the Miraculous Medal
O virgin mother of God, Mary immaculate, we dedicate and consecrate ourselves to you under the title of Our Lady of the Miraculous Medal.
May this medal be for each one of us a sure sign of your affection for us and a constant reminder of our duties towards you. Ever while wearing it, may we be blessed by your loving protection and preserved in the grace of your son.
O most powerful Virgin, mother of our saviour, keep us close to you every moment of our lives. Obtain for us, your children, the grace of a happy death; so that, in union with you, we may enjoy the bliss of heaven forever.
O Mary, conceived without sin, pray for us who have recourse to you. (say this line three times)