Yekusiel Yehuda Halberstam, the Klausenberger Rebbe, refused to eat non-kosher food. He prayed three times a day and gave nightly Torah sermons to his congregants. He visited the sick, sang Hasidic melodies, and celebrated the Sabbath. He did all this while interned as a prisoner in the Auschwitz-Birkenau extermination camp. Who exactly was this Hasidic Rebbe, and what explains his theology? Come learn his life, legacy, and Torah

Shabbos Kestenbaum is a Harvard graduate student researching the intersections of contemporary Jewish life and public policy. Originally from the Bronx, Shabbos spent two years studying Religious philosophy, Talmudic law, and Jewish ethics at Yeshiva Aish HaTorah in Jerusalem, Israel. Shabbos has spent the last few months immersed in Ukrainian refugee relief work centered in Krakow and Lviv and the resurgence of Jewish life in Poland.