"Now we must consider how Mary is interpreted "Star of the sea." This name is most suitable to Mary, for she fulfills the office that a star does to mariners at sea. We read, and it is true, that sailors, when they propose to sail to some distant land, choose a star by whose guiding light they may, without going astray, make their way to the land of their desire. Such is certainly the office of Mary, our Star, who directs those who sail through the sea of the world in the ship of innocence or penance, to the shore of the heavenly country."

Hail Star of the Bitter Sea

"Mary is interpreted: "a bitter sea"; this is excellently suited to her power against the demons. Note in what way Mary is a sea, and in what way she is bitter, and how she is at once a sea and bitter. Mary is a sea by the abundant overflow of her graces; and Mary is a bitter sea by submerging the devil. Mary is indeed a sea by the superabounding Passion of her Son; Mary is a bitter sea by her power over the devil, in which he is, as it were, submerged and drowned."