Can You Hear it?

And of all nonsensical things,
I keep thinking about the horse...

not the boy, the horse,
and what he might be trying to do.

I keep seeing the huge head,
kissing him with its chained mouth...

nudging through the metal,
some desire absolutely irrelevant...

to filling its belly
or propagating its own kind.

What desire could this be?

- Peter Shaffer, "Equus"