Thursday Poem

Alhazen of Basra

If I could travel a thousand years back
to August 1004, to a small tent
where Alhazen has fallen asleep among books
about sunsets, shadows, and light itself,
I wouldn’t ask whether light travels in a straight line,
or what governs the laws of refraction, or how
he discovered the bridgework of analytical geometry;
I would ask about the light within us,
what shines in the mind’s great repository
of dream, and whether he’s studied the deep shadows
daylight brings, how light defines us.

by Brian Turner

from Here, Bullet; Alice James Books, 2005