words rolling through a tunnel with no end

Life never answers.
It has no ears and doesn't hear us;
it doesn't speak, it has no tongue.
It neither goes nor stays:
we are the ones who speak,
the ones who go,
while we hear from echo to echo, year to year,
our words rolling through a tunnel with no end.
That which we call life
hears itself within us, speaks with our tongues,
and through us, knows itself.

[Octavio Paz, from "Response and Reconciliation"; Eliot Weinberger, trans.]