The Church teaches us to invoke Mary as Mediatrix of all graces. This title summarizes what the Blessed Virgin is for us, in our relations with her beloved Son: the Mediatrix of grace, of mercy, the treasurer of all the graces which Jesus merited for us.
As Mediatrix, Mary also leads men to Jesus by teaching them the way to her Son and by showing them how to please Him. We are always poor little children incapable of making presentable gifts to God, but Mary our Mother, with maternal delicacy, arranges and embellishes our gifts, our acts, our prayers and sacrifices, and offers them with her own hands to her divine Son.