Experience will teach you much more about this devotion than I can tell you, but, if you remain faithful to the little I have taught you, you will acquire a great richness of grace that will surprise you and fill you with delight.
Let us set to work, then, dear soul, through perseverance in the living of this devotion, in order that Mary's soul may glorify the Lord in us and her spirit be within us to rejoice in God her Saviour. Let us not think that there was more glory and happiness in dwelling in Abraham's bosom - which is another name for Paradise - than in dwelling in the bosom of Mary where God has set up his throne.
This devotion faithfully practised produces countless happy effects in the soul. The most important of them is that it establishes, even here on earth, Mary's life in the soul, so that it is no longer the soul that lives, but Mary who lives in it. In a manner of speaking, Mary's soul becomes identified with the soul of her servant. Indeed when by an unspeakable but real grace Mary most holy becomes Queen of a soul, she works untold wonders in it. She is a great wonder-worker especially in the interior of souls. She works there in secret, unsuspected by the soul, as knowledge of it might destroy the beauty of her work.
As Mary is everywhere the fruitful Virgin, she produces in the depths of the soul where she dwells a purity of heart and body, a singleness of intention and purpose, and a fruitfulness in good works. Do not think, dear soul, that Mary, the most faithful of all God's creatures, who went as far as to give birth to a God-man, remains idle in a docile soul. She causes Jesus to live continuously in that soul and that soul to live in continuous union with Jesus. If Jesus is equally the fruit of Mary for each individual soul as for all souls in general, he is even more especially her fruit and her masterpiece in the soul where she is present.
To sum up, Mary becomes all things for the soul that wishes to serve Jesus Christ. She enlightens his mind with her pure faith. She deepens his heart with her humility. She enlarges and inflames his heart with her charity, makes it pure with her purity, makes it noble and great through her motherly care. But why dwell any longer on this? Experience alone will teach us the wonders wrought by Mary in the soul, wonders so great that the wise and the proud, and even a great number of devout people find it hard to credit them.
As it was through Mary that God came into the world the first time in a state of self-abasement and privation, may we not say that it will be again through Mary that he will come the second time? For does not the whole Church expect him to come and reign over all the earth and to judge the living and the dead? No one knows how and when this will come to pass, but we do know that God, whose thoughts are further from ours than heaven is from earth, will come at a time and in a manner least expected, even by the most scholarly of men and those most versed in Holy Scripture, which gives no clear guidance on this subject.
We are given reason to believe that, towards the end of time and perhaps sooner than we expect, God will raise up great men filled with the Holy Spirit and imbued with the spirit of Mary. Through them Mary, Queen most powerful, will work great wonders in the world, destroying sin and setting up the kingdom of Jesus her Son upon the ruins of the corrupt kingdom of the world. These holy men will accomplish this by means of the devotion of which I only trace the main outlines and which suffers from my incompetence.