A man looks back on his life.  As ballet plots go, Watermill is fairly straightforward.  It's in the telling that makes it Jerome Robbins' most theatrical and intimate work.  Predating the first Next Wave Festival by 11 years, the seldom-seen 1972 dance appeared at this year's Festival as part of the Jerome Robbins Centennial Celebration with recent New York City Ballet retiree Joaquin De Luz and students from the Conservatory of Dance at Purchase College SUNY. Robbins applied elements of his early modern dance training, work in Yiddish theatre, and Japanese Noh  to Watermill.  The choreographer said, "The ballet itself is influenced