Regarding death, Xu Yuan probably isn't the person who has pondered it the most, but he's likely one of the few in this world who truly understands it. After all, resurrection is just like reincarnation—an uncompromisingly technical endeavor.
Since that day he came back to life, every time the night grew still and he was alone, Xu Yuan would unwittingly find himself pondering what exactly this godforsaken thing called "life" is all about.
The Prime Minister's Mansion, as one of the absolute ruling entities of this world, had given Xu Yuan access to countless classified studies on life.
In his previous life, such research was restrained by modern moral boundaries, but here in the feudal Imperial era, human rights or animal rights were hardly a concern.