Everything has a spirit, but this spirit is not a true spirit, but a reiki. Only people and a few strange beasts have the true spirit, the true spirit is a thing, there are different opinions, its name is numerous, some say it is the soul, some say it is the original god. But no one knows its true face, why it exists, what is its use, and countless sages have worked hard to decipher it since ancient times. But one thing is certain, people must not lose their true spirit, otherwise they will lose their seven emotions and six desires and become a walking corpse.

The Sword Roaring Palace is a four-dimensional space that exists in any place in the past, present, and future. The time and space in which it is located are changing all the time, and only a four-dimensional observer can make the probability cloud collapse and fix it in a certain time and space. Extremely strong energy can also cause it to produce projections, creating portals in the world. People in the world have been looking for the Sword Screaming Palace in order to achieve enlightenment, but it seems that after enlightenment, it is by no means as wonderful as people imagined. So is the Sword Screaming Palace a natural existence or a man-made thing? Maybe there will be an answer.