" Satan, being proud, suffers infinitely more from being beaten and punished by a little and humble handmaid of God, and her humility humbles him more than the Divine power; and, secondly, because God has given Mary such a great power against the devils, that, as they have often been obliged to confess, in spite of themselves, by the mouths of the possessed, they fear one of her sighs for a soul more than the prayers of all the Saints, and one of her menaces against them more than all other torments. "
― Louis de Montfort , True Devotion to Mary