| Quote #1
How I have suffered grim sorrow at heart,
The ocean on which the speaker travels is a dangerous place. Those tossing waves don't just throw the ship out of control – they do it "near the cliffs," where there's a danger of running aground and springing a boat-sinking leak. Right away, at the beginning of the poem, the natural world is a dicey, frightening place.
| Quote #2
[…] Fettered by cold
The cold and frost totally mean business. They've got our speaker shackled, which is an interesting contrast with his description of himself as a traveler in constant motion. He may be physically in motion, but he feels trapped by his environment.
| Quote #3
[…] I, wretched and sorrowful, on the ice-cold sea
This passage links together a lot of important themes of the poem: exile, sadness, loneliness, and, of course, extreme winter weather. Being in exile is no cakewalk. In fact, it seems like the most miserable place ever: bad weather, no friends, and icicles.