"I don't know what you're talking about?"
Chu Liang expressed confusion. What he was denying was not the act of killing Qi Lin'er, but the so-called "Essence of Life". Indeed, he knew nothing about this.
But after a brief thought, he guessed that it might be the golden mark absorbed by the White Pagoda...irrelevant to divine sense and soul, it referred to the most fundamental essence of a living being. Both soul and body originated from spirituality in this world.
He had been curious for a long time about what those golden marks used for exchanging rewards in the White Pagoda were? In this world, spirituality is conserved, nothing comes out of thin air, and this extends to souls, physical bodies, True Qi et cetera.
So, it was something even more primal.