The Rub

"One must forgive the noisy rushing fools, who have no time for nature's natural schools. They cannot see the life thta's in their hands, like ghosts they disappear across the land."

This little ghostly metaphor has a catch to it. For the ghosts could be revenants and each and every generation is haunted by them over again.

But it also could imply some fun and meaning in life - chasing them away.