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.