Letra de Walls

Hey you put your life on a cloud You put it right next to me And then you walked straight away What does this mean Am I to be scared Are you looking back To see if I'm gone Well haven't you heard I can walk through walls And I should be screaming aloud But I'm holding it in Until I see you again How long can you bleed Till your heart runs dry Are you looking back To see if I've passed Well haven't you heard I survived the blast