 The idea that, in every generation, there are righteous persons through whom the divine effluence is drawn to the material world is rooted in the kabbalistic thought, which also claims that one of them is supreme, the reincarnation of Moses.Hasidism elaborated the notion of the "Tzaddiq" into the basis of its entire system – so much that the very term gained an independent meaning within it, apart from the original which denoted God-fearing, highly observant people.When the sect began to attract following and expanded from a small circle of learned disciples to a mass movement, it became evident that its complex philosophy could be imparted only partially to the new rank and file.