What is Haiku?

What in the world is haiku? Well, I am still learning that myself and finding that there is an incredible amount of diversity in this form between its inception in Japan and reception and growth here in America. Be cautious of anyone who has a simple answer!

As I explore this form, it is interesting to see how I, as a Christian, view it differently from its Buddhist background. The difference between enlightenment and revelation is marked.

Some resources to learn more that are helping me: