It is not a new opinion that the Golden Bough was the mistletoe.(933) True, Virgil does not identify but only compares it with the mistletoe. But this may be only a poetical device to cast a mystic glamour over the humble plant. Or, more probably, his description was based on a popular superstition that at certain times the mistletoe blazed out into a supernatural golden glory. The poet tells how two doves, guiding Aeneas to the gloomy vale in whose depth grew the Golden Bough, alighted upon a tree, “whence shone a flickering gleam of gold. As in the woods in winter cold the mistletoe—a plant not native to its tree—is green with fresh leaves and twines its yellow berries about the boles; such seemed upon the shady oak the leafy gold, so rustled in the gentle breeze the golden leaf.”(934) Here Virgil definitely describes the Golden Bough as growing on an oak, and compares it with the mistletoe. The inference is almost inevitable that the Golden Bough was nothing but the mistletoe seen through the haze of poetry or of popular superstition. Now grounds have been shown for believing that the priest of the Arician grove—the King of the Wood—personified the tree on which grew the Golden Bough.(935) Hence, if that tree was the oak, the King of the Wood must have been a personification of the oak-spirit. It is, therefore, easy to understand why, before he could be slain, it was necessary to break the Golden Bough. As an oak-spirit, his life or death was in the mistletoe on the oak, and so long as the mistletoe remained intact, he, like Balder, could not die. To slay him, therefore, it was necessary to break the mistletoe, and probably, as in the case of Balder, to throw it at him. And to complete the parallel, it is only necessary to suppose that the King of the Wood was formerly burned, dead or alive, at the midsummer fire festival which, as we have seen, was annually celebrated in the Arician grove.(936) The perpetual fire which burned in the grove, like the perpetual fire under the oak at Romove, was probably fed with the sacred oak-wood; and thus it would be in a great fire of oak that the King of the Wood formerly met his end. At a later time, as I have suggested, his annual tenure of office was lengthened or shortened, as the case might be, by the rule which allowed him to live so long as he could prove his divine right by the strong hand. But he only escaped the fire to fall by the sword. Thus it seems that at a remote age in the heart of Italy, beside the sweet lake of Nemi, the same fiery tragedy was annually enacted which Italian merchants and soldiers were afterwards to witness among their rude kindred, the Celts of Gaul, and which, if the Roman eagles had ever swooped on Norway, might have been found repeated with little difference among the barbarous Aryans of the North. The rite was probably an essential feature in the primitive Aryan worship of the oak.(937)