Board Thread:Naruto Discussions/@comment-3279282-20140828133937/@comment-945885-20140904005402

Artofcreation wrote: The Rabbit-form was (probably) not created by Kaguya, especially not with Creation of All Things. She was known as the Rabbit goddess, so I think it's just a natural aspect of hers. Still, I find it odd that she is a giant plant, a giant rabbit, a human-like figure, and a ten-tailed monster all in one package. It's the result of commingling mythologies.

In The Tale of the Bamboo Cutter, Kaguya-hime was originally from the moon.

The "moon rabbit" is the Asian equivalent of the "man in the moon," and so through folklore the rabbit has also become associate with the moon.

The Ten Tails is inspired by Ippon Datara (a one-eyed, one-legged mountain spirit) and Deidarabotchi (a giant that shaped the landscape of Japan), two unrelated creatures from Japanese mythology and folklore.

The Divine Tree is likely inspired in part by the Tale of the Bamboo Cutter, in which Kaguya-hime was found in a stalk of bamboo. Its appearance also resembles both a bamboo stalk and a lotus flower, the latter of which ties into the Buddhist mythology that's frequently referenced by all the Six Paths / Rinnegan stuff (and the Gedo Statue likewise resembles certain statues of the Buddha).