To me, it's about someone who's falling in love with a friend, and even though he knows what he should do (And if I were a good man I'd talk with you more often than I do / I'd understand the spaces between friends) he just can't because he's not perfect (if i was a swan i'd be gone, if i was a train i'd be late, etc)
So he's thinking about possible situations (And if I were with you i'd be home and clean), but knows that he's not brave enough to do something else than think and hypotetize, so he becomes afraid of going mad, and, even if he were to become insane, he wouldn't want to change. (If I go insane, please don't put your wires in my brain)
So, he accepts he just can't do anything about the situation.
To me, it's about someone who's falling in love with a friend, and even though he knows what he should do (And if I were a good man I'd talk with you more often than I do / I'd understand the spaces between friends) he just can't because he's not perfect (if i was a swan i'd be gone, if i was a train i'd be late, etc)
So he's thinking about possible situations (And if I were with you i'd be home and clean), but knows that he's not brave enough to do something else than think and hypotetize, so he becomes afraid of going mad, and, even if he were to become insane, he wouldn't want to change. (If I go insane, please don't put your wires in my brain)
So, he accepts he just can't do anything about the situation.