Wish you were here

WISH YOU WERE HERE....PINK FLOYDSo, so you think you can tellheaven from hell?Blue skies from pain?Can you tell a green fieldfrom a cold steel rail?A smile from a veil?Do you think you can tell?And did they get you to tradeyour heroes for ghosts?Hot ashes for trees?Hot air for a cool breeze?Cold comfort for change?Did you…