So we have here some spiritual beings that are different from the wandering souls with no definite powers. Strehlow calls them gods;[882] but this expression is inexact, at least in the great majority of cases. If it were true, then in a society like the Arunta where each one has his protecting ancestor, there would be as many or more gods than there are individuals. It would merely introduce confusion into our terminology to give the name of god to a sacred being with only one worshipper. It may be, of course, that the figure of the ancestor grows to a point where it resembles a real divinity. Among the Warramunga, as we have already pointed out,[883] the clan as a whole is thought to be descended from one sole and unique ancestor. It is easily seen how this collective ancestor might, under certain circumstances, become the object of a collective devotion. To choose a notable example, this is what has happened to the snake Wollunqua.[884] This mythical beast, from whom the clan of the same name is held to be descended, continues to live, they believe, in water-holes which are therefore surrounded with a religious respect. Thus it becomes the object of a cult which the clan celebrates collectively: through determined rites, they attempt to please him and to win his favours, and they address to him all sorts of prayers, etc. So we may say that he is like a god of the clan. But this is a very exceptional case, or even, according to Spencer and Gillen, a unique one. Normally, the word "spirits" is the only one suitable for designating these ancestral personages. As to the manner in which this conception has been formed, we may say that it is evident from what has preceded.