The information here comes from a post made by the official account on Hoyolab made on 19 March 2024.

Dan Heng:
I'll be the acting chief editor for this issue to educate you on some essential information, Trailblazers.
You mentioned wanting to learn more about Emanators, so I've compiled all relevant information from the data bank. I hope this will help.

If mortals receiving the grace of Aeons and grasping the power of Paths are viewed as a singular shattered foam, then the mighty feats of Aeons driving their Paths onward can be likened to a towering tsunami that engulfs mountains. In this empty stellar vastness, a small number of favored mortals can also draw upon the power of the Paths with the permission of the Aeons, creating huge waves that erode the coast. They are referred to as “Emanators.”

While not completely subservient to the Aeons, Emanators are as god as emissaries of the Aeon's wills in everyone else's eyes.

Different Aeons have different attitudes towards THEIR Emanators, so the method through which THEY grant power and the extent of the power also varies significantly. Some Aeons regard Emanators as an extension of THEMSELVES, some Aeons have no intention of creating Emanators, and there are even Aeons who just do as THEY please.

Factions that worship martial strength will view the Emanator's status as a banner, using it as a show of their influence. However, some forces view the acquisition and control of information in higher regard, intentionally concealing the Emanator's existence. There are also Emanators who blend into the crowd, pretending to be ordinary mortals before they reveal their powers. But there is one undeniable fact: Along each Path, the distances that Emanators stride far surpass that of their mortal Pathstriding counterparts. And on this journey, their mere existence becomes the drive of the continuation, extension, and expansion of their Paths.

Dan Heng: Rumors about Emanators across the universe are rife, and they should not all believed. Here, I will list some reputable sources that may hopefully educate you.