I think it's about two people who have been together a long time whose relationship is drifting apart, but since they've become so dependent upon each other for happiness they don't know how to live without each other. "they'll need a crane, they'll need a crane/ to take the house he built for her apart," that house is attachment, and they're saying it'll take something big to get them apart. This song's about how love fades and people stay together just because it's the life they know.
I think it's about two people who have been together a long time whose relationship is drifting apart, but since they've become so dependent upon each other for happiness they don't know how to live without each other. "they'll need a crane, they'll need a crane/ to take the house he built for her apart," that house is attachment, and they're saying it'll take something big to get them apart. This song's about how love fades and people stay together just because it's the life they know.