Coldplay - Harmless lyrics

If you call and call Your self esteem is low And I heard you'd called Is there no calling? And away I go Any way you go I was o­n your tail As clear as crystal But it was harmless It couldn't hurt you Oh you were helpless I know you'll get through I know, I Chemicals are cold See you sit down o­n A chemical you cause Is like a crystal So I heard you say I got to get away I'm o­n a second trail As clear as crystal But I was harmless It couldn't hurt you Oh you were helpless I know you'll get through