What is "imperial salt"?
The history of royal salt:
Legend has it that around the year of 1 century, a Japanese boatman named "Qimu Sasaki Road" found a strange crystal in salt during a meal, which was extremely salty and spicy and inedible, so the boatman picked it out with chopsticks and threw it under the bed. Because there are many unknown little devils by the sea, shipping workers are often overwhelmed by ghosts. Since "Qi Mu Sasaki Akira" threw the salty salt under the bed, there are no more ghosts. So every time he cooks, he often picks out the salty salt and gives it to his friends.
Later, when the famous Japanese psychic "Tuoliang" asked the boatmen to help carry books and medicinal materials of the Han Dynasty in China, he found that some boatmen did not have dirty air.
Some people have many children. So some boatmen were called in, only to know that it was because they brought salty salt, so "Youliang" named this salt "Imperial Salt" and specially invited "Qimu Sasaki Muming Road" to select the imperial salt. In the 6th century, China's theory of Yin-Yang and Five Elements was introduced into Japan, mixing Taoist incantations with esoteric occupations. What prevailed in Japan was the teacher of Yin and Yang in Heian period. At this time, defensive salt is used as a sacred object for feng shui layout and evil spirits.