"As the Jewish delegates strolled to the opening of last week’s interfaith conference on the environment at Windsor Castle, one in particular would have caught your eye: a man with a white beard, black hat and a multi-coloured tallit. Its wearer is one of the true innovators in contemporary Judaism, the neo-Chasidic rebbe who gave birth to the Jewish Renewal movement, Rabbi Zalman Schachter-Shalomi, over here on a rare visit here from the United States."