The popular communal mysticism known as Hasidism transformed religious thought and practice among East European Jews during the eighteenth and nineteenth centuries. In the mid-twentieth century, Martin Buber, the greatest Jewish philosopher and religious thinker of that time, single-handedly transformed Hasidism from an all-but-forgotten movement into one of the great spiritual movements of the modern world. In this collection are assembled some of Professor Buber's profoundest and, at the same time, simplest and most moving essays, which constitute an incomparable distillation of Hasidic wisdom.