You can read the lyrics
here. And hear the track
here. (Both links are "legit.")
Now, I'm not going to suggest that each verse of this song needs to be interpreted in a DnD context. But tell me the first stanza isn't suggestive (see the links for the full set of lyrics, I won't post them here):
Oh, where have you been, my blue-eyed son?
Oh, where have you been, my darling young one?
I’ve stumbled on the side of twelve misty mountains
I’ve walked and I’ve crawled on six crooked highways
I’ve stepped in the middle of seven sad forests
I’ve been out in front of a dozen dead oceans
I’ve been ten thousand miles in the mouth of a graveyard
And it’s a hard, and it’s a hard, it’s a hard, and it’s a hard
And it’s a hard rain’s a-gonna fall
I love how it seems formulaic, but it gets less interpretable as you go. Stumbled, walked, crawled...okay. Then "stepped in the middle," we start to lose exactly what's suggested. Then "out in front of a dozen dead oceans." What? Just "in front" of them? On the shore? Finally, "I've been ten thousand miles in the mouth of a graveyard." If that's not a megadungeon, I don't know what is.
Thread for discussion, thoughts, inspiration based on this song, etc.