Shadow Geometry

at what point do shadows become
numbers and numbers become dust

is it when sunlight and moonlight cross
the eye into our anatomical darkness

when the zero circle helixes into short
existence a rose, a cell, a dying memory

when raindrops no longer liquefaction, 
leaving umbrellas a meaningless prop

or the  grid that passes over unnoticed 
during the slow, long ride to the hospital

maybe, the strobe of lights that moves  
from office cubicle to office cubicle

possibly the shadows that dance while 
you clean precisely calibrated glasses

try to focus on those rain smeared 
figures now in your field of view

remembering they once were you on 
the half lit steps staring into the dark

watching the three triangle flapping 
of the crow over the tarmac