333 Mo Yaoqing

Yunzhong lay to the south of the Celestial Pole. One needed to pass Kunwu Mountain, go through the forests to the south, and cross the South Sea before arriving in Yunzhong. 

Because there were many demonic beasts in the southern forest and the Eastern Sea was cut off by Demonic Mountain, only a few cultivators in the Celestial Pole knew the situation in Yunzhong. Even well-informed ones only knew that there was a piece of land to the south of the sea. As time went by, they just called it Shannan, meaning "south of Kunwu Mountain."