Practical Kabbalah transferred techniques from practical to speculative Kabbalah. While this led to the displacement of magical formulas and rites by contemplative exercises, the old forms of practical Kabbalah continued to exert broad appeal. Luria's position as the central teacher of modern Kabbalah, the foundation for later Hasidism, gives his proscription authoritative force. He taught that in our generations, without the Temple in Jerusalem and its ashes of the Red Heifer to purify, the pursuit of the realm of practical Kabbalah by a person with an impure body is very detrimental. The traditional role of the Baal Shem healer involved accepted methods
Yiddish theatre to the often melodramatic and larger-than-life style of Yiddish theatre, this style nonetheless informed their theories and left its stamp on them. Yiddish theatre was also highly influential on what is still known as Jewish humor. Like the rest of Yiddish-language culture, Yiddish theatre was devastated by the Holocaust. Most of the world's Yiddish-speakers were killed and many theatres were destroyed. Many of the surviving Yiddish-speaking Ashkenazim emigrated to Israel, where many assimilated into the emerging Hebrew-language culture, since Yiddish was discouraged and looked down upon by Zionists. In Soviet Union, the Moscow State Jewish Theatre continued to perform until