Among the barriers used against spiritual disasters was the Eight Array Barrier, a technique said to be absolutely impossible to break from the inside.
It was a technique belonging to the Dun Jia Technique.
In truth, the Dun Jia Technique was one of the three great secret arts known as the Three Arts. Its full name was the Mystic Gate Dun Jia Technique, and it was also called the Mystic Gate, Mystic Gate Dun, or Dun Jia.
The other two great secret arts of the Three Arts were Liu Ren and Taiyi.
Mystic Gate, Liu Ren, Taiyi.
These were the famous three great secret arts, and they were also extremely important systems in Onmyodo.
Abe no Seimei had once been exceptionally skilled in Liu Ren. Using it for divination, he had been said to know astronomy above and geography below, to be omniscient and omnipotent. His work, the Divination Manual, also belonged to the Liu Ren school of divination, and had benefited Abe no Seimei throughout his life.
What Luo Zhen was using now was the Taiyi art among the Three Arts.
More precisely, it was a spellcraft within the Taiyi art.
Within the Three Arts, the three great secret arts respectively centered on the Heavenly Origin, Earthly Origin, and Human Origin. They could also be said to belong to the domains of Heaven, Earth, and Humanity.
Taiyi governed the Heavenly Origin.
The Mystic Gate governed the Earthly Origin.
Liu Ren governed the Human Origin.
Thus, among the Three Arts, the Mystic Gate mostly consisted of formations and barrier techniques, Liu Ren mostly consisted of divination and precognition techniques, while Taiyi mostly consisted of arts related to spirits. It could suppress divine spirits, eliminate evil spirits, purify vengeful spirits, and subdue wicked spirits. In broad theoretical terms, it mainly consisted