C115

Metal did not contain yin and yang, and using iron in coffins did not conform to the Dao of yin and yang. Furthermore, when nails were nailed onto coffins, one's soul would be imprisoned, preventing them from reincarnating. As for the coffins we usually see, they are actually rivets, and any carpenter would know the way.

So when I saw a few nails pop out of the coffin, I felt even more uneasy