Sort of like summerpenguin said, I think this is about feeling alienated by those you love because of something you did (people on the streets seem to disapprove). The whole thing about buildings and people probably means like...you never can tell who the people you know really are underneath it all (i.e. she never thought they'd "disown" her or w/e). As the song goes on, it describes how she goes from being pretty down about it to realizing all the things she can do and be now that she's alone ("open your window and look upon all the kinds of alive you can be). Lovee this song. (:
Sort of like summerpenguin said, I think this is about feeling alienated by those you love because of something you did (people on the streets seem to disapprove). The whole thing about buildings and people probably means like...you never can tell who the people you know really are underneath it all (i.e. she never thought they'd "disown" her or w/e). As the song goes on, it describes how she goes from being pretty down about it to realizing all the things she can do and be now that she's alone ("open your window and look upon all the kinds of alive you can be). Lovee this song. (: