Under three hundred years are Yellow Feather Treasures, under eight hundred years are Cyan Feather Treasures, and above eight hundred years are Purple Feather Treasures.
Further up are Pure Yang Treasures.
Yellow Feather Treasures are initially endowed with spirituality, akin to human infants.
Cyan Feather Treasures, after centuries of incense offering, absorb sufficient nourishment, similar to a child's rapid development in intelligence, muscles, and bones.
As for Purple Feather Treasures, they are nearly fully developed, with vigorous vitality, analogous to human adolescents.
Pure Yang Treasures represent the peak stage of human life.
"Although treasures can be seen as life forms, they differ from our understanding of life," Li Miaoyin explained.
In many films and dramas, treasures become sentient, even birthing artifact spirits. This is purely human-imagined and anthropomorphic.
True alien life forms are life, but you don't perceive them as life.
