Francis Ledwidge - The Sylph

I saw you and I named a flower
That lights with blue a woodland space,
I named a bird of the red hour
And a hidden fairy place.

And then I saw you not, and knew
Dead leaves were whirling down the mist,
And something lost was crying through -
An evening of amethyst.

Francis Ledwidge

http://www.poemhunter.com/poem/the-sylph/