When a tree comes to be viewed, no longer as the body of the tree-spirit, but simply as its dwelling-place which it can quit at pleasure, an important advance has been made in religious thought. Animism is passing into polytheism. In other words, instead of regarding each tree as a living and conscious being, man now sees in it merely a lifeless, inert mass, tenanted for a longer or shorter time by a supernatural being who, as he can pass freely from tree to tree, thereby enjoys a certain right of possession or lordship over the trees, and, ceasing to be a tree-soul, becomes a forest god. As soon as the tree-spirit is thus in a measure disengaged from each particular tree, he begins to change his shape and assume the body of a man, in virtue of a general tendency of early thought to clothe all abstract spiritual beings in concrete human form. Hence in classical art the sylvan deities are depicted in human shape, their woodland character being denoted by a branch or some equally obvious symbol.(246) But this change of shape does not affect the essential character of the tree-spirit. The powers which he exercised as a tree-soul incorporate in a tree, he still continues to wield as a god of trees. This I shall now prove in detail. I shall show, first, that trees considered as animate beings are credited with the power of making the rain to fall, the sun to shine, flocks and herds to multiply, and women to bring forth easily; and, second, that the very same powers are attributed to tree-gods conceived as anthropomorphic beings or as actually incarnate in living men. First, then, trees or tree-spirits are believed to give rain and sunshine. When the missionary Jerome of Prague was persuading the heathen Lithuanians to fell their sacred groves, a multitude of women besought the Prince of Lithuania to stop him, saying that with the woods he was destroying the house of god from which they had been wont to get rain and sunshine.(247) The Mundaris in Assam think if a tree in the sacred grove is felled, the sylvan gods evince their displeasure by withholding rain.(248) In Cambodia each village or province has its sacred tree, the abode of a spirit. If the rains are late, the people sacrifice to the tree.(249) To extort rain from the tree-spirit a branch is sometimes dipped in water, as we have seen above.(250) In such cases the spirit is doubtless supposed to be immanent in the branch, and the water thus applied to the spirit produces rain by a sort of sympathetic magic, exactly as we saw that in New Caledonia the rain-makers pour water on a skeleton, believing that the soul of the deceased will convert the water into rain.(251) There is hardly room to doubt that Mannhardt is right in explaining as a rain-charm the European custom of drenching with water the trees which are cut at certain popular festivals, as midsummer, Whitsuntide, and harvest.(252)