Was there a time

Was there a time when dancers with their fiddles
in children's circuses could stay their troubles?
there was a time they could cry over books,
but time has set its maggots on their tracks.
under the arc of the sky they are unsafe.
whats never known is safest in this life.
under the skysigns they who have no arms
have cleanest hands, and, as heartless ghost
alone's unhurt, so the blind man sees best