The ancient "Great Wilderness" and the contemporary "Dark Side Earth" run parallel to each other, and the dual time and space are reflections of each other.
Once every 5,000 years, the world of Shan Hai Jing will briefly overlap with the earth for 99 days during the "Return to Xu Tide".
As long as it is "named" correctly, the alien beast will gain full power; if it is "misnamed", it will become deformed.