I want to know the three great artifacts of Japan! Please elaborate! The origin of the three great artifacts!

Japan's three great artifacts are: grass-shaved sword, eight mirrors, and eight-board Qiong Quyu. Grass shovel sword: The grass shovel sword is hidden in a big snake with eight heads and eight tails (or only eight heads). The grass-shaved sword still preserved in Japan is regarded as a national treasure by the Japanese. In Japan, it not only has the value of cultural relics, but also is regarded as sacred or sacred. Formerly known as "Heaven from the Cloud". The Japanese Book of Records also records the story of the grass-shaved sword showing its spirit. Among the three treasures used as a token (equivalent to a jade seal) when the Japanese emperor acceded to the throne, there was Yun Jian, a genius-of course, as the author of Chrysanthemum and Knife said, the original sword had sunk to the bottom of the sea in a turmoil, and now the royal family only uses imitations. Eight mirrors: Eight mirrors mean big or beautiful. Eight-child mirror originated from China's water mirror, also known as "sword". Is to put water in the metal basin opposite. Later, it gradually developed into a bronze mirror with auspicious patterns such as pine, bamboo, plum, turtle and crane painted on the back. In the Yayoi era, mirrors were introduced into Japan from China. At that time, the Japanese regarded the mirror as a sacred object and hung it on their chests as an instrument to ward off evil spirits. After that, the types of mirrors increased, and eight of them were used as sacred sacrifices for the gods in the Ise Shrine, the ancestor of the Japanese shrine. Mirrors occupy a considerable position in Japanese folklore. The Japanese believe that the mirror itself shows that it has mystery and magic, so there are many beliefs and legends about the mirror. It is said that it can attract good luck, reflect people's hearts, expose the essence of the devil, and foresee good or bad luck in life and death. As a result, there are still people in Japan who think that the broken mirror is an ominous sign, so you can't cross the mirror, and you should cover the mirror on occasions other than auspicious occasions.

"Eight Mirrors" Source: Same as above: Eight Eight and a Half Joan's Quyu: Source:

The earliest ancestors of the Japanese were two gods, Nagi (male) and Isobo (female). Like Adam and Eve in the Bible, they created the Japanese archipelago and jointly gave birth to Son of God, who was in charge of all walks of life (this is simply the oriental version of the Bible). Among them, the evil spirit Nagi gave birth to a god with his left eye, that is, the sun god (it is not clear whether this person is male or female). This immortal, who is neither male nor female, is still the ultimate leader of Shinto in Japan and enjoys the treatment similar to that of Zeus in Greece. The male (Poseidon) born by the nose of Father Nagi is too lawless to be born by his sister (or brother)? The celestial god was driven out of the celestial world, and as a result, he unexpectedly accomplished the great feat of slaying the serpent of the Eight Disagreements. The so-called Hachiba serpent is a huge monster with eight snake heads in Japanese legend. The three descendants of the people who must stay are responsible for taking care of the blade of the grass shovel, the jade hook of the eight-foot Joan and the mirror of the eight, respectively, and their surnames have changed into the grass shovel, the eight-foot Joan and the eight with these three artifacts. The three families are also responsible for monitoring the seal serpent. However, out of jealousy of the grasshopper, Hachiqiong betrayed her ancestors and took refuge in the Eight-Different Serpent, and changed her surname to Ba Shen.