Yin 皓宇 Hào Yǔ

He was a poet who traveled from the Brights to the Gloom. Many of his poems talk about the great sky and stars in the night, referring to many of the creatures and flora resembling them. Later in him time in the Gloom, he started to think about mortal nature and how if mortals too glow and collect a thing he called fluor, they could be stars, rise and join the other high beings in the sky. Maybe one day, they can return to the great sky too, just as some believed Nephila to.

At this point, generations have grown up and not seen the sky themselves, while some have. So the sky is something almost mystical- or at least is starting to be something mystical to the people who have spent generations underground. It was this condition that caused his teachings to flourish in Obsidi and Heliotros at the time, adopting it into their religious practices.

It was in his prime years he theorized how to properly gain fluor and avoid bad fluor in a book he wrote. These same principals are upheld to this day.