Lyric discussion by c_o_c_o 

This is a kind of metaphoric meaning, but I always kind of thought of it like he was taking to himself, sort of, like a past self. He has a conversation with a younger version of himself, and they're talking about his life and such.

i see it this way too

I agree!! i thought no one would see the song that way. i think it talks about alienating to the point you can't even recognize yourself anymore. in a sort of dream-like way he's facing his own fears and sides to himself he thought had dissapeared long ago.he blames himself for being the man who ripped his world appart. then he comes to face not only parts of him but his entire being is empty (We must have died alone, a long long time ago)for he is nothing but the sum of everything he once was that now he's...

Could be on the right track there, but "sold the world" seems to make the context larger than simply a conversation with a younger version of the narrator's "self". Then again, every person has their own "world". This is a brilliant song

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