The East-West Border

The East-West border is always wandering,
sometimes eastward, sometimes west,
and we do not know exactly where it is just now:
in Gaugamela, in the Urals, or maybe in ourselves,
so that one ear, one eye, one nostril, one hand, one foot,
one lung and one testicle or one ovary
is on the one, another on the other side. Only the heart
only the heart is always on one side:
if we are looking northward, in the West;
if we are looking southward, in the East;
and the mouth doesn't know on behalf of which or both
it has to speak.