Haiku is a small poetry with oriental metric that appeared in the XVI century and is being very popular mainly in Japan. It's been disseminating in all around the world during this century. It have an old and long story that reminds the spiritualist philosophy and the Taoist simbolism of the oriental mistics and Zen-Buddhist masters who express much of their thoughts in form of miths, simbols, paradoxes and poetic images like the Haiku. It's done to transcend the limitation imposed by the usual language and the linear/scientific thinking that treat the nature and the human being as a machine.
It's a contemplative poetry that valorizes nature, color, season, contrasts and surprises. Usually it has 3 lines and 17 syllabes distributed in 5, 7 and 5. It must register or indicate a moment, sensation, impression or drama of a specific fact of nature. It's almost like a photo of some specific moment of nature.
More than inspiration, it's need meditation, effort and perception to compose a real Haiku.

Good NH mornin Rev...
Watch out for this one.. I think he's heading for your watering hole... ;)