Mystic Trends in Judaism analyzes the development of the Jews' relationship to God as expressed in kabbala, messianism, hasidism, the cult of the tzadikim and, finally, as reflected in three classic Yiddish writers. The twofold significance of the kabbala-as a mystical conception of a cosmic world, and as a nationalist concept of the Jewish people-merged, in the conviction that this people was chosen to bring universal redemption to all people, on earth. Arnold Posy notes that the mystical revelations of the kabbala and the empirical conclusions of modern science share an awareness of the...