What does "Guardian of Orion" mean?

This is not an astronomical concept, but a description of literary writing.

You must know all kinds of legends about Orion. Orion is indeed the representative constellation of the winter sky. Orion is the brightest star in the winter sky ~

Winter night, every night after work, walking on the way to work, there is always a bright light in the vast night sky, which makes the way home less lonely and fearful, that is Orion. From then on. Orion has become a guardian constellation that many people have always relied on. ...

Another is Astalos, the patron saint of Orion in World of Warcraft. This is a fictional game, and I just heard about it.

I hope I can help you!