Xuan Jie explained. Xuanjie is a traditional sexual vessel that existed from the Neolithic period to the Shang, Western Zhou and Spring and Autumn periods. It is said that the Hongshan culture has been xuanjie, but it has not yet been reported in kind. The shape of Xuanjie is based on walls or rings, and the outer edge is attached with three or four tooth shapes that point in unison (there are also four teeth in spring and autumn). Xuanjie's name first appeared in Wu Dache's "Ancient Jade Tu kao". He believes that this kind of jade is the Xuanjie of "Xuanjie Yuheng, with Qi Qiqizheng" mentioned in the Shang Shu Shundian ( Shang Shu Shundian ) ; in ancient times, the combination of jade and Xuanjie into a rotating peeping tube was used to observe the stars and judge the auspicious astronomical instrument, that is, the armillary sphere. Wu said that he had a great influence on Chinese and foreign academic circles, and some scholars believed it. After recent years of research, it has been proved that the exact nature and use of Xuanjie is still a major doubt in ancient jade.

Neolithic Yuxuanjie Excavated from the Danshi Site in Wulian County, Shandong Province
Late Shang Dynasty Yuxuanjie Tomb of the forefoot of Tengzhou City, Shandong Province was excavated
Miaodigou Phase II Culture Yuxuan Jie The qingliang temple cemetery in Ruicheng County, Shanxi Province, was excavated
Longshan Culture Jade Tooth Wall Collection
Late Neolithic Jade Tooth Wall Collection
Shang Dynasty Jade Tooth Wall Collection
Regarding the fact that the shape of Xuan Jie comes from the sun halo, there are actual photos of the sun halo as proof. The circle in the center of the figure is the sun, which has clouds in the middle, and the outer edge has a tangent arc of light points and clouds, which are similar to the three-tooth shaped from the perimeter of Xuanjie.
Spring and Autumn Yuxuanjie The tomb of Liu Jiadianzi in Yishui County, Shanxi Province was excavated
Late Shang Dynasty Yuxuan Jie Was excavated from Yin Ruins in Anyang City, Henan Province
Shang Dynasty YuXuanjie Excavated in Fengtang Village, Fengtang Township, Huaiyang City, Henan Province
The Xuanjie produced by Sima Tai was combined with the jade ring when it was unearthed, and it could be rotated. The combined use of this group of artifacts is an isolated case, but it is also worth noting. Are they related to Xuanjie's meaning of "rotation" (indicating that the sun is rotating)? Or is it related to observing celestial phenomena? In short, they provide a credible clue to the mystery of Xuanjie.
Longshan culture Yuxuanjie Simatai site in Haiyang City, Shandong Province was excavated
Early Shang Dynasty Xuanjie-shaped jade ornaments Excavated from Wangjiazui, Panlong City, Huangpi District, Wuhan City, Hubei Province
Late Shang Dynasty to early Western Zhou Dynasty Yuxuan Jie Excavated at the Jinsha Site in Chengdu, Sichuan Province
That said
This artifact
What's the use
Naruto's first S-class ninjutsu
Taking advantage of the change in the nature of the wind chakra,
Transform the chakra of the spiral pill into a high-level ninjutsu in the form of a shuriken.