Snow Patrol - Canal Song (End Of Sentence) lyrics

I saw it leave your face Its the only thing that I need Its the only thing that I need so take it I caught you and your canvas eyes With the only thing that I need With the only thing that I need but take it Something you put in the waste I'm craving Its the only thing that I need Its the only thing that I need but take it If you'd prefer it erased then bleach the place Its the only thing that I need Its the only thing that I need But my heart it never breaks It just beats on despite the ache And the day I touch you and make you see Broken well be You and me The birds fly south tonight They've given up Its the only thing that I need Its the only thing that I need but take it The skies grow dark beneath their wings What does it mean? Its the only thing that I need Its the only thing that I need But my heart it never breaks It just beats on despite the ache And the day I touch you and make you see Broken well be You and me