Mary, Mother of ALL the living
Our Blessed Lady is the mother of all the living, or rather she is mother of Life itself. Since we all receive life from He who is Life, rightly then can we extend to her, the title of "ALL the living", for she is the mother of the very source of life itself, God.
The Gospel According to St John 19:26-27
26 When Jesus saw his mother, and the disciple whom he loved standing near, he said to his mother, “Woman, behold, your son!” 27 Then he said to the disciple, “Behold, your mother!” And from that hour the disciple took her to his own home.