Very nicely done, Phill ... I especially like the metaphor about time being a cave, with no end in sight. This is probably the best description of hopeless despair I've ever read, and unfortunately it resonates within. The chord structure is very David Gilmour-ish.
I'd been listening to "wish you were here" and I'm afraid I might have stolen a bit? Namely the riff and some of the chord structure.
As usual with me the first line sparked off the rest of the words. I was trying to be poetic and paint verbal pictures....no that's coblers...I just tried to express the feelings I had when my first marriage fell apart, how she expected me to jump when she called and demanded money!
I think we've all been close to despair, I just wanted her to feel it, because she was the human (almost) of a bovine animal that chews grass and lives in a field.