"Ah, yeah, I suppose there is that," he replies taking a gulp of tea as he looks away. While he was not technically a grave robber - his actions were all towards saving and preserving the relics of the past and hopefully those buried with them - he left the spiritual stuff to those that actually knew what they were doing.

Which apparently was what this youth did in his world, but he had said earlier that he was a rule breaker. Did that mean Wei Wuxian did not actively laid spirits to rest when he could? No wait, taboo like making them work for a person, is that what he said. Wu Xie looked over his cup at him and then set it down slowly.

"Who knows? In a way, we are just making things up as we go along. I mean, my Uncle Three used a black donkey's right hoof to subdue zombies and I always wondered how anyone in their right mind figured that one out."