Where does the word "Han Yu" come from?

This word is not from the Four Books and Five Classics.

Ancient poems and songs

Textual research on folk names

The word meaning is often used to name.

China has a saying.

Give it to those who hit the fire.

It is a word with fire attribute.

Korean fire: it means that the sky will be bright, and it is mostly used for names. It should be named as: John, Han Yi, Rouhan, Han Yi, Han Yun and Han Yu.