+276+. Probably, also, it is from this general order of ideas that the conception of the cosmic tree has sprung. The Scandinavian Yggdrasil is the source of life to all things and represents also wisdom; though the details may contain Christian elements, the general conception of the world as a tree or as nourished by a tree is probably old.[499] The same conception appears in the cosmic tree of India.[500] Such quasi-philosophical ideas of the unity of the life of the world suppose, doubtless, a relatively advanced stage of culture, but they go back to the simple belief that the tree is endowed with life and is a source of life for men. The transition to the cosmic conception may be found in those quasi-divine trees that grant wishes and endow their friends with wisdom and life. +277+. The divinatory function of trees follows as a matter of course from their divine nature (whether this was regarded as innate or as due to an indwelling spirit). Their counsel was supposed to be expressed by the rustling of their leaves,[501] or in some way that was interpreted by priests or priestesses (as at Dodona and elsewhere) or by diviners (so, perhaps, the Canaanite "terebinth of the diviners").[502] The predictions of the Cumæan sibyl were said to be written on leaves that were whirled away by the wind and had to be gathered and interpreted. To what method of divination this points is not clear--possibly to supposed indications in the markings of the leaves; it may, however, be merely an imaginative statement of the difficulty of discovering the sibyl's meaning.[503] +278+. The passage from the conception of the tree as a divine thing or person (necessarily anthropomorphic) to the view that it was the abode of a spirit was gradual, and it is not always easy to distinguish the two stages one from the other. The tree-spirits, in the nature of the case very numerous, were not distinguished by individual names, as the trees were not so distinguished.[504] The spirits resident in the divine trees invoked in the Vedas are powerful, but have not definite personality, and it is hard to say whether it is the tree or the spirit that is worshiped. The Indian tree-spirits called Nagas appear to be always nameless, and are not mentioned in the list of deities that pay reverence to the Buddha (in the Maha Samaya).[505] The large number of trees accounted sacred in Babylonia were doubtless believed to be inhabited by spirits, but to no one of these is a name given.