What kind of character is Zhou Yixian in Zhu Xian? Is there anything involved in this?

Zhou Yixian, on the surface, is an old man who deceives people and tells fortune everywhere, but his knowledge is definitely the first, and his strength ~ Ding Xiao didn't explain much, but I think he is definitely a great man, like sweeping monk in Tianlong Babu. Otherwise, Fan Xiao, who has learned four volumes of gobbledygook, can't even hide from the palm of his hand.

This is the end of the whole story. We can only guess. I hope the ending can be rewritten.