Dr. Ismar Schorsch, chancellor of the Jewish Theological Seminary, acknowledges that his appeal to Conservative Jews to withhold financial support from Lubavitch has had little impact. data shows that 20,000 Lubavitch Jews live in the Crown Heights section of Brooklyn, where the worldwide headquarters of Lubavitch is located in a red brick building at 770 Eastern Parkway. There is also a substantial Lubavitch community in Israel as well as Lubavitch centers, known as Chabad houses, in more than 450 cities around the world. (Chabad is a Hebrew acronym for Chochma, Binah and Daas, or Wisdom, Understanding and Knowledge.) The centers — in places as diverse as Seattle and Memphis, Honolulu and Buenos Aires, Berlin and Hong Kong — largely serve the needs of non-Chasidic Jews. "When we get to Mars nobody will be surprised if there is a Chabad House there," said Samuel Heilman, a professor of sociology at. Queens College, City Un- iversity of New York, who just spent a year in Israel studying the ultra- Orthodox. Firmly at the helm of the Lubavitch or- ganization is Rabbi Schneerson, whose 87th birthday last April took on all the trappings of a minor religious festival for his followers. In New York City, for ex- ample, 40 "Mitzvah Tanks," specially equipped Chevy vans, were dispatched in his honor to circulate through the city. Chasidim jumped out and began asking passers-by, "Are you Jewish?" An affir- mative answer brought an invitation to step into the Mitzvah Tank to put on a pair of tefillin or learn about lighting candles for Shabbat. Rabbi Schneerson is the seventh in a line of rabbis that dates back to Rabbi Shneur Zalman of Lyady, an early Chasi- dic master born in 1745 who taught a system of Judaism that was a unique combination of the intellect and the spirit. His major philosophical text is called the Tanya, a book that continues to be a guiding force for Lubavitch followers today, some 200 years after it was first published. The Tanya was written at a time when Chasidism came under attack for being overly concerned with the joy of being Jewish and not concerned enough with the responsibility to study, especially the Talmud. In the Tanya, Rabbi Shneur Zalman outlines a sophisticated system of thought relying on three levels of un- derstanding: Chochma, Binah, and Daas. In some ways the work helped strengthen Chasidism as an intellectual movement. Rabbi Shneur Zalman and his succes- sors, who lived in the town of Lubavitch for more than a century, were the victims of czars and pogroms as well as the Mit- nagdim, the rational Orthodox Jewish movement that are the historical rivals of the Chasidim. Unlike other, more in- sulated Chasidic groups, the leaders of Lubavitch and their followers worked closely with both secular Jews and gen- tiles. The current Rebbe, Rabbi Schneer- son, had his dose of worldliness as well. Before the Second World War, he studied mathematics and science at the Universi- ty of Berlin and at the Sorbonne. Professor Heilman of Queens College said that the exposure of Lubavitch throughout its history to different people and ideas enables it today to reach out well beyond its own constituency. It is a talent unmatched among other Chasidic groups, who have made a virtue of their insularity. What distinguishes Lubavitch most Bearded men and fresh faced young boys pose a striking contrast at a Lubavitch gathering in New York. - 30 FRIDAY, DECEMBER 8, 1989 , Photo By Ricki Rosen from the other Chasidic groups is its out- reach, whether on the streets with its Mitzvah Tanks or on cable television with its broadcasts of Rabbi Schneer- son's messages or its advertisements in the New York Times every Friday alerting "Jewish women and girls" to the proper time to light Sabbath candles. While Lubavitch attracts a growing number of baalei teshuvah — new adher- ents to Orthodoxy — its major emphasis is on spreading mitzvot, Jewish good deeds, among the non-Orthodox. Recent- ly, Rabbi Schneerson also initiated a campaign to urge gentiles to observe the seven laws given to Noah, which include reverence for one God and injunctions against adultery, theft and murder. As a sign of his commitment to those ideals, the Rebbe is an ardent supporter of a moment of silent prayer in the public schools. The Lubavitch dynasty was passed down from father to son, or father to son- in-law, to the current Rebbe, who suc- ceeded his father-in-law, Yosef Yitzchok Schneerson, in 1950. The current Rebbe, however, has no children. Within Lubav- itch, he is the supreme human authority and, if there is anyone waiting in the wings to succeed him, it is a well kept se- cret. Messianic Message? Lubavitch officials, such as Rabbi Yehudah Krinsky, a top aide to Rabbi Schneerson, refuse to discuss the issue of succession, resorting instead to com- ments like, "This is not a concern for us. The Mashiach [Messiah] will come." When asked whether that means that Lubavitch considers Rabbi Schneerson to be the Messiah, Rabbi Krinsky re- sponded: "Our sages teach us that the Messiah will be a human being who lives among us. We believe that in every gen- eration there is a person who has the qualifications to be the Messiah of the Jewish people. I don't know of anyone around now more suitable to fill the shoes of the Messiah than the Rebbe." His response is in keeping with a long- standing tradition for Chasidic Jews to believe that their own rabbi could be the Messiah. But such a comment — coupled with the Lubavitch propensity for dis- playing large color photographs of the Rebbe as well as posters with the legend "We Want Mashiach Now!" — has led to some criticism that Lubavitch is treading on dangerous ground by implying that its leader will someday be revealed as the Savior promised in the Bible. Some view the fact that several years ago Lubavitch built an exact replica of 770 Eastern Parkway at Kfar Chabad, the Lubavitch village near Israel's Lod Airport, as an indication that it will be the