I Only Can Wonder

I only can wonder
at the dwelling-place of thunder,
where molecules of spreading blue
run all asunder --
where man was meant to stay forever under,
but has put something -- a clue --

A massive metal thing
of wires, glass, mechanical wing --
a rather clunky, too-large bird.
But it can bring
a man from California to Beijing,
yes, it can move a crowd -- a herd --

But even in sky's day,
where man is clean, apart from clay,
there is some unseen curtain
-- and that's okay.
For Brothers Wright and pilots of today
and tomorrow can not know -- for certain.