Ling Xiaolong used to be a Primordial Being.
In fact, he was a human at first, but obtained Primordial Origin Body, Primordial Origin Bloodline, and Primordial Origin Soul from the Tree of Chaos (the guardian of Cosmic Field called Chaos), and transformed into a Primordial Being.
However, it was after witnessing the birth of the first life in Eternity that he understood that he was far from becoming a true Primordial. There were still differences between him and the true Primordial Creatures.
Slowly, one after another, countless Primordial Beings were born. They together formed a race; the Primordial Race.
After the primordial race, several other races were born, including the Spiritas Race.
Following that, the flow of creation continued like an unstoppable tide.