Question

earlier in this scene Salarino mentioned three dangers posed to ships at sea, What were they? How did he explain them?

Answer 1

Answer:

The three dangers were wind, dangerous rocks, shallows and flats.

Explanation:

He explained them saying, while cooling his soup, it would remind him of a wind too great at sea. He would see the sand in the hour glass, and he would think of sandbanks (the shore) and imagine his ship wrecked. He would see the holy edifice of stone (stone building in the church), and directly think of dangerous rocks that could wreck the ship.