Some nigunim originate from non-Jewish sources. Hasidic Jews, based on a practice of their founder Rabbi Israel Baal Shem Tov, have adapted anthems and even folk songs, ascribing them a new spiritual dimension. For example, Chabad Hasidim have adopted the French tunes of "La Marseillaise" and "Napoleon's March", as well as Russian or German drinking songs as a part of their liturgy. Many Hasidim believe that these songs, in their secular forms, are in spiritual exile. By adapting them to liturgical forms, they are "raising Holy Sparks" according to the teachings of Rabbi Isaac Luria's system of kabbalah. (The same justification is used for the use of Arab tunes for Sephardic pizmonim.) The process continues to this day, with new nigunim emerging from time to time.