This class is the second installment in a lecture series by Rabbi Yoel Kahn on the Lubavitcher Rebbe's "Kuntres Inyana Shel Toras Hachassidus" or "On the Essence of Chassidus," an original discourse delivered on the 19th of Kislev 5726 (Dec 13, 1965). Rabbi Kahn gave this class in Yiddish to the senior students at the Central Chabad Lubavitch Yeshiva at 770 Eastern Parkway in Brooklyn, and it covers Seif Zayin through Yud Gimmel.