 The term "Tzadik" ("righteous"), and its associated meanings, developed in rabbinic thought from its Talmudic contrast with "Hasid" ("pious"), to its exploration in ethical literature, and its esoteric spiritualisation in Kabbalah.In Hasidic Judaism, the institution of the Tzadik assumed central importance, combining former elite mysticism with social movement for the first time.The concept of "sant" or "bhagat" is found in North Indian religious thought including Sikhism, most notably in the Guru Granth Sahib.