5. Mary is the supreme masterpiece of Almighty God and he has reserved the knowledge and possession of her for himself. She is the glorious Mother of God the Son who chose to humble and conceal her during her lifetime in order to foster her humility. He called her "Woman" as if she were a stranger, although in his heart he esteemed and loved her above all men and angels. Mary is the sealed fountain and the faithful spouse of the Holy Spirit where only he may enter. She is the sanctuary and resting-place of the Blessed Trinity where God dwells in greater and more divine splendour than anywhere else in the universe, not excluding his dwelling above the cherubim and seraphim. No creature, however pure, may enter there without being specially privileged.
From DeMontfort
6. I declare with the saints: Mary is the earthly paradise of Jesus Christ the new Adam, where he became man by the power of the Holy Spirit, in order to accomplish in her wonders beyond our understanding. She is the vast and divine world of God where unutterable marvels and beauties are to be found. She is the magnificence of the Almighty where he hid his only Son, as in his own bosom, and with him everything that is most excellent and precious. What great and hidden things the all-powerful God has done for this wonderful creature, as she herself had to confess in spite of her great humility, “The Almighty has done great things for me.” The world does not know these things because it is incapable and unworthy of knowing them.