Happiness in Judaism name "Hasidim" was coined, one of the names used to refer to the followers of the new movement was "di freilicha" (), “the happy ones.” The founder of Hasidism, Rabbi Yisroel Baal Shem Tov (1698–1760) is quoted as saying "In the eyes of the Hasidim, joy is considered a biblical commandment, a mitzvah." The Hasidic Rebbe, Rabbi Nachman of Breslov (1772–1810) would often say "It is a great mitzvah (commandment) to live in the state of happiness" ("mitzvah gedolah lihiyot b'simcha tamid", ). And Rabbi Aharon of Karlin (I), one of the early Hasidic masters, reportedly said, "There is no
Mitzvah tank in "military fashion" in which "campaigns" and battles are fought, hence the naming of the vans and trucks as "tanks". The strategy behind the Mitzvah tank "campaigns" was designed and encouraged by the seventh rebbe of Chabad Lubavitch, Rabbi Menachem Mendel Schneerson . Mitzvah tanks can be vans, travel trailers, recreational vehicles, campervan or pickup trucks. On Sukkot, vehicles may be fitted with a portable Sukkah (the Sukkah-mobile). Mitzvah tanks are put into operation on the eve of major Jewish holidays and Fridays prior to Shabbat. The vehicles often have large banners or logos on them, extolling some aspect of