Why are travelers sages?

The "first sage" is called "the first sage in Boye". Bouillere is the fiend name of Nasida, the king of Euphorbia, and the walker is the first supporter of Nasida, helping Nasida purify the world tree. So Naxi da ji said to Monkey, "Please, I am the first sage of Boye."

Nasida called travelers sages.