The information here comes from a post made by the official account on Hoyolab on 29 April 2022. (Many of these exist in the database already and have been edited slightly.)

People know very little about the mysterious beings that dwell in the deep stellar ocean. Constrained by their limited cognition, intelligent lifeforms can only slightly perceive the Paths that Aeons tread upon, and rely on mere concepts and theories to vaguely comprehend the vastness of their powers. Eventually, through spoken legends, these Aeons became the embodiments of abstract concepts.

If anyone finds themselves treading on the Path of an Aeon, they will be inundated by a distant sensation, like being struck by a glance from light-years across the galaxy. Many believe that this is the only connection the Aeons and mortals can ever have.

“Countless shooting stars streak across the night sky… If you can pick the right one, it will carry your wish to thousands of distant worlds.”

— Adrian Spencer Smith, Fables About the Stars

There are three directions on the wheel of destiny — the unknown, the known, and the unknowable. The idea of the unknown is tolerable, however, the unknowable sounds more like a challenge. Akivili left the isolated world of Pegana and continued to explore the unknown edges of the universe, hoping to find the edge of existence. Unfortunately, Akivili's destiny was abruptly ended due to an accident.