I love Stevie Smith's poems. "Not Waving, But Drowning" is one of my favorites. But it is fairly well known so here is another.
IN MY DREAMS
In my dreams I am always saying goodbye and riding away,
Whither and why I know not nor do I care.
And the parting is sweet and the parting over is sweeter,
And sweetest of all is the night and the rushing air.
In my dreams they are always waving their hands and saying goodbye,
And they give me the stirrup cup and I smile as I drink,
I am glad the journey is set, I am glad I am going,
I am glad, I am glad, that my friends don't know what I think.