Essences were innately abstruse and difficult to comprehend. In all of the void that had once been a starry sky, only a few people had ever mastered such things. After all, anyone who could do so would be considered a Daoist master who had comprehended all things, and reached the Sovereign Realm!!
Sovereigns were rare, as difficult to find as a phoenix feather or a qilin horn. Anyone from any group of people who became a sovereign would be the pride and glory of that group. And if any group could produce two sovereigns, none could possibly stand in their way!
Of course, Bai Xiaochun was far, far from that level. He wasn't even in the Archaean Realm yet. And yet, that posed no obstacle to him when it came to gaining enlightenment of Essences.
Essences were profound and mysterious, much less to mention the fact that matters of time were paramount among such great Daos. In fact, only one sovereign within this starry sky had ever succeeded with the Essence of time.