The Sandokai is one of my favorite Zen Poems, and the work that Shunryu Suzuki did on it was beautiful. Another one that I quite enjoy is Zen Master Raven, by Robert Aitken. A wonderful book, I'll find my copy and transpose some of his metaphor and anthropomorphic jovial sense of Zen here tonight. As A giving of Thanks to Harlan for starting this thread.
While everything changes, nothing is truly lost.