You can’t see the magnetic fields
or the electrostatic fields or gravity
or the influence of one mass on another
or the perfect slicing of time.
All you can see are the flat spin of trails
left by energetic particles, like peering through
the Moonlight in the rain.
Go around. around, around.
In certain areas of the western plains
the ruts left by wagon wheels can still be seen
200 years after the new places were found.
Traveling from Ohio to Oregon,
the rear wheel of a Conestoga wagon would
revolve nine hundred and thirty thousand times,
had anyone counted.