Pink floyd - wish you were here

So, so you think you can tell Heaven from Hell,
blue skies from pain.
Can you tell a green field from a cold steel rail? A smile from a veil?
Do you think you can tell?

And did they get you trade your heroes for ghosts?
Hot ashes for trees? Hot air for a cool breeze?
Cold comfort for change? And did you exchange
a walk on part in the war for a lead role in a cage?

How I wish, how I wish you were here.
We're just two lost souls swimming in a fish bowl,
year after year,
running over the same old ground. What have we found?
The same old fears,
wish you were here.