Been here before

I have been here before
words stale inside
composure and grace
turmoil easy to hide

sentiments congeal to coherence
only to deflate on my tongue
what can I say, my friend
that wouldn't feel all wrong

So I compose and I shred
decide against it every time
I have been here before
a wall too high to climb

Did you ever wonder
why we had to run for shelter
when the promise
of a brave new world
unfurled beneath a clear blue sky?
-- Pink Floyd, The Wall, "Goodbye Blue Sky"