A moth could not (Lee)

The world is full of people, but seldom
is a person to be found.

The world is full of light, yet who
has seen such a thing?

The world is all dark, yet a hand finds its way
to other hands, a mouth its way to another mouth.
...

I said, "Even in this boundless space,
if both of us turned our faces
toward each other at the same time

our mouths would be separated by an interval
a moth could not fly through without touching
both of what we said."

Li-Young Lee, from "Lake Effect"