“To Age” by W.S. Merwin

It is time to tell you
what you may have guessed
along the way without
letting it deter you
do you remember how
once you liked to kneel looking
out of the back window
while your father was driving
and the thread then of pleasure
as you watched the world appear
on both sides and from under
you coming together
into place out of nowhere
growing steadily longer
and you would hum to it
not from contentment but
to keep time with no time
floating out along it
seeing the world grow
smaller as it went from you
farther becoming longer
and longer but still there
well it was not like that
but once it was out of sight
it was not anywhere
with the dreams of that night
whether remembered or not
and wherever it was
arriving from on its way
through you must have been growing
shorter even as you
watched it appear and go
you still cannot say how
but you cannot even tell
whether the subway coming
in time out of the tunnel
is emerging from
the past or the future