In Mary, God Himself is enclosed.

The garden locked, in which the Giver of being is enclosed.
In Mary is enclosed God Himself,
the whole heaven and all creation;
by the blood taken from Mary, the whole world is saved.
And if it had not been for Mary, there would be no paradise for me,
if it had not been for Mary, I would not have met God …

(Mary Magdalene de’ Pazzi, Probatione, II)