Mark 4:35

For the Lord is said to have had three places of refuge, namely, the ship, the mountain, and the desert. As often as He was pressed upon by the multitude, he used to fly to one of these. When therefore the Lord saw many crowds about Him, as man, He wished to avoid their importunity, and ordered His disciples to go over to the other side...

After His teaching, they come from that place to the sea, and are tossed by the waves. Wherefore it is said, And the same day, when the even was come, &c. Mystically, however, the hinder part of the ship is the beginning of the Church, in which the Lord sleeps in the body only, for He never sleepeth who keepeth Israel; for the ship with its skins of dead animals keeps in the living, and keeps out the waves, and is bound together by wood, that is, by the cross and the death of the Lord the Church is saved. The pillow is the body of the Lord, on which His Divinity, which is as His head, has come down. But the wind and the sea are devils and persecutors, to whom He says Peace, when He restrains the edicts of impious kings, as He will. The great calm is the peace of the Church after oppression, or a contemplative after an active life.

And he said to them that day when evening had come: Let us cross over. And dismissing the crowd, they took him along in the boat just as he was, and other boats were with him. In this passage, the Lord deigns to show both natures of his one and the same person, when he, who as a man sleeps in the boat, calms the fury of the sea with a word as God. Furthermore, by allegory, the sea which he desires to cross with his own is taken as the dark and bitter turbulence of the present world. But the little boat he boards is best understood as the wood of his most holy passion. By whose benefit, all the faithful, aided, rise above the waves of the world and reach the abode of the heavenly homeland, as if to the stability of a secure shore. However, the other boats said to have been with the Lord, but not brought into the deep or reported to have endured any storm, clearly signify those who, having been imbued with the faith of the Lord's cross, have not yet been struck by the whirlwind of tribulations, and only preserve the mysteries of faith received in the peace of the Church; or indeed, those who, after repeated gales of temptations, use a little granted calm of peace for a time. It is uncertain whether those boats, recently made, were brought into port or returned to port after experiencing the dangers of the sea. Hence, they can rightly denote both those who have not yet been tested by temptations, and those who, after frequent examination by tribulations for Christ, now, with temptations somewhat stilled, enjoy the tranquility of things.