and all that could have been

Breeze still carries the sound
Maybe I'll disappear
Tracks will fade in the snow
You won't find me here
Ice is starting to form
Ending what had begun
I am locked in my head
With what I've done
I know you tried to rescue me
Didn't let anyone get in
Left with a trace of all that was
And all that could have been

(Nine Inch Nails: And All That Could Have Been)