In No Time
As Davis and Nadia made their way towards the little settlement, he began thinking as to why the Blazing Thunderlight Kirin Immortal's bit of soul essence didn't cause him to enter the King Soul Stage even though it seemed to be at the High-Level Ninth Stage.
The answer he arrived at was that the energy in the soul essence was completely used up. It was no wonder that an Immortal existence wasn't able to maintain consciousness. Only its remnant comprehension of its laws imprinted on its soul was left out, but he managed to make use of it effectively instead of letting it disperse into thin air.
He was rather appreciative of his own quick thinking at that time because he had learned its laws without possessing its blood essence, which now became a huge boost to his prowess in terms of both Fire Laws and Lightning Laws.