The Snowman by Wallace Stevens
One must have a mind of winter
To regard the frost and the boughs
Of the pine-trees crusted with snow;
And have been cold a long time
To behold the junipers shagged with ice,
The spruces rough in the distant glitter
Of the January sun; and not to think
Of any misery in the sound of the wind,
In the sound of a few leaves,
Which is the sound of the land
Full of the same wind
That is blowing in the same bare place
For the listener, who listens in the snow,
And, nothing himself, beholds
Nothing that is not there and the nothing that is.
= new reply since forum marked as read
Zen?
"Nothingness (wu-i-wu) is the same as emptiness (sunyata) and is true "purity" for Hui-neng. According to D. T. Suzuki, "It is the negation of all qualities, a state of absolute non-ness" yet is not misconceived as a separate entity outside of a perceiver engaged in "the pure act of seeing." This "seeing" is quintessential To Zen. It is satori – seeing into one's inner, true nature – and thus "seeing into the ultimate nature of things" – perceiving the true Mind. This seeing is termed chien-hsing ("to look into the nature [of the mind]"
. Seeing is also called Prajna (wisdom), or at least seeing is with the "eye of Prajna" and Prajna is what enables one to see. Prajna allows one to grasp sunyata, the emptiness of all things, and is itself "knowledge of the highest order permitted to the human mind, for it is the spark of the ultimate constituent of all things." This ultimate constituent, the sine qua non, the quintessence, is hsing or Mind.
http://alangullette.com/essays/philo/nothing.htm
Well, I just checked and it seems he did 
http://www.sfzc.org/the-dharma-of-wallace-stevens
