| Quote #4 Our voices took a dreary tone, |
Even the voices of the three brothers seem unnatural in the close confinement of their dungeon. They've known each other all their lives, yet their voices sound "dreary" and unfamiliar.
| Quote #5 A double dungeon wall and wave |
The position of the castle's dungeon right along the side of the lake makes it a "double dungeon." It's a little like Alcatraz prison used to be in the San Francisco Bay: once you got over the wall, you had a large body of water to get through, too – making it a "double dungeon."
| Quote #6 My very chains and I grew friends, |
By the end of the poem, the speaker has gotten so used to his confinement that he can't imagine being free. The "long communion" he's had with his thoughts have made him a kind of hermit and he's stopped even desiring freedom.