Question

Why is the vessel called 'grim and daring​

Answer 1

Answer:

While follow eyes the steady keel, the vessel grim and daring; Note how the scene is created: the ship is near port and the people are all celebrating and exulting. They are all watching the "steady keel" of the boat, that is described as "grim and daring" because of its exploits in warfare.

Answer 2

Answer:

literally the line while follow eyes steady keel, the vessels grim and daring express how the people on the pier excitedly watch the ship pull into the dock the ship is steady and strong but also very serious and bold because of all of it's experience