MARY, UNIVERSAL MEDIATRIX
3. The Mediation in the Gospel.
a) She appears in the Incarnation as a Co-Redemptrix since at that moment by Her consent She accepted the sacrifice of being the Mother of Sorrows of the Man of Sorrows. In the presentation of the Child Jesus where She offers Her Son and renews Her generous immolation and hears from the lips of Simeon the cruel prophecy about the sword which pierces Her heart, She again shines forth as Co-Redemptrix. She is our Co-Redemptrix at the foot of the Cross when She associates Herself with Her Son in such a manner that both were two hosts of the same sacrifice.
b) When She visits St. Elizabeth and thanks to the presence of Our Blessed Lady the Baptist is sanctified in the womb of his mother, She is again a Mediatrix who intercedes, obtains and distributes graces. She is Mediatrix in the wedding of Cana where the first miracle of Our Lord is performed by the prayer --we might perhaps say at the imposition-- of Mary when She succeeds in anticipating the hour of the manifestation of Her Son. She is a Mediatrix in the Supper Room on Pentecost Day where Mary prepares the apostles to receive the Holy Spirit, that is to say, where She cooperates with the sanctifying work of grace in the souls of the apostles.
[Excerpted from 'MARIAN MEDITATIONS' Book by Rev. Dr. Ildefonso R. Villar, Salesian Philippine Province, Nihil Obstat; Imprimatur]