Introduction to the Ground Crack Gorge: The Ground Crack Gorge is the most complete fractured ground crack in the Tianyi Valley. There are countless waterfalls and pools, which are rare geological wonders in the world. The gorge is a metaphor for the dividing line between the mortal world and the fairy world. It is a test of whether one can survive in the cracks in the earth. Breaking out of the earth's shell and walking out of the crack is the last pass for people to enter the fairy world from the mortal world. If you step out, you will reach the fairy world. If you cannot step out, you will still be in the mortal world, and there is the possibility of falling into the abyss again.