The Great Attractor Poem by Anthony Weir

Only 10% of the total mass
of the once-expanding
now-contracting Universe
is matter. The rest
remains ineffable, in occultation.
As each of us crawls helplessly
back and forth between our ears,
on a planet spinning on its axis
and revolving round a sun revolving
in a galaxy which hurtles at six hundred
kilometres per second to the black holes of
the Great Ineffable Attractor,
we think we are important
and live as if we were immortal.

And we predict that the duration of the Cosmos
will be another 15 to 20 billion years.