Raja Shehadah has lived in Ramallah on the West Bank ever since his family left Jaffa in the nakbeh (cataclysm) of 1948, during which over a million Palestinians were displaced, creating a fresh diaspora to take the place of the one that felt it was coming home. In this sense, the nakbeh was - is - the ultimate irony. Shehadah is a lawyer and peace activist who has now turned to writing. In ''Palestinian Walks'' he ties the beauty he sees in his disappearing homeland to the crumbling of his dreams for a legal solution to the Israeli occupation. As you would expect, it is sad, angry, hopeless. However, it is also quite beautiful and, at times, touches on the profound.