Engraving by the renowned Augsburg artist, Josef Sebastian Klauber
Mary whose half image is placed on top of a three-tiered fountain is identified as the one who "contains all grace" ("In me gratia omnis," Sirach 24). This is confirmed by the Annunciation angel, "Gratia plena" (full of grace), and by the three rays of light emanating from the triangular symbol of the Trinity. In turn, the rays are transformed into three well- springs springing from Mary's heart, symbol of Trinitarian grace, and the three theological virtues of faith, hope and charity. Thus, Mary is a fountain of life.
"Let us proceed to and approach the throne of grace"(Hebrews 4).
The Marian Library has in its possession rare books of the eighteenth century with engravings by the renowned Augsburg artist, Josef Sebastian Klauber (ca. 1700-1768). The highly symbolic and illustrative reproductions are typical of the Baroque period. Their message is of great spiritual riches. Mary's profile is that of the exalted Mother, Virgin, and Queen, as suits the period. We limited ourselves to the illustrations of the Marian titles. The reader needs to keep in mind that the titles introduced in the nineteenth and twentieth centuries, obviously, are not included in Klauber's illustrations.
Mary’s Heart, the Inexhaustible Fountain
St. John Eudes in Classic Mariological Excerpts
http://www.motherofallpeoples.com/2005/07/marys-heart-the-inexhaustible-fountain/
Our Lady’s most blessed Heart is the wonderful fountain that God caused to spring from the ground at the beginning of the world, as described in the second chapter of Genesis. “A spring rose out of the earth, watering all the surface of the earth” (Gen 2:6). St. Bonaventure tells us that this fountain was a figure of the Blessed Virgin Mary. “She was prefigured in the fountain that sprang from the earth.” (1) But we have equal reason to say that this represented her Heart, which is truly a living fountain whose heavenly waters irrigate not only the whole earth, but every created thing in Heaven as well as on earth.
Mary is the sealed fountain of the holy Spouse, which her divine Bridegroom calls “a fountain sealed up” (Cant. 4:12), for it remained sealed not only against the world, the devil and every kind of sin, but it was closed even to the Cherubim and Seraphim, who could not penetrate the marvelous secrets or comprehend the inestimable treasures hidden by God in Our Lady’s pure Heart.
Sacred Scripture states that the heart of man is evil and inscrutable (Jer. 17:9). But the Heart of the Queen of Heaven inspires these words: “God created her in the Holy Spirit, and saw her, and numbered her, and measured her” (Ecclus. 1:9). In other words, so holy and impenetrable is the Heart of Mary that only God Who enclosed within His treasures of grace and put His seal upon it, can know the quality, quantity and price of the graces hidden in this sealed fountain. All we can say is that Mary’s Immaculate Heart is a fountain of light, a fountain of holy and blessed water, a fountain of living and life-giving water, a fountain of milk and honey and a fountain of wine. It is the source of a great river, nay, of four miraculous streams, and finally, it is the source of an infinity of blessings and goodness.For more on this, check this link http://www.liberius.net/livres/The_admirable_Heart_of_Mary_000000374.pdf