Mary, Mediatrix of all Graces

There have been four dogmas formally defined concerning the Blessed Virgin Mary. They are Mary, the Mother of God; the Perpetual Virginity of Mary; the Immaculate Conception; and the Assumption. Yet a fifth dogma awaits to be proclaimed by the Church, one which has been prophesied by many Marian saints. This dogma is Mary, Mediatrix of All Graces. A lay movement called Vox Populi Mariae Mediatrici has been actively promoting the proclamation of this doctrine.

Fr. Reginald Garrigou - Lagrange, O.P. discusses the office of mediator:

"The office of mediator belongs fully only to Jesus, the Man - God, Who alone could reconcile us with God by offering Him, on behalf of men, the infinite sacrifice of the Cross, which is perpetuated in Holy Mass. He alone, as Head of mankind, could merit for us in justice the grace of salvation and apply it to those who do not reject His saving action. It is as man that He is mediator, but as a Man in Whom humanity is united hypostatically to the Word and endowed with the fullness of grace, the grace of Headship, which overflows on men. As St. Paul puts it: 'For there is one God, and one mediator of God and men, the man Christ Jesus: Who gave Himself for a redemption for all, a testimony in due times' (I Tim. ii, 56).