Moreover, the stronger the soul, the more attractive it was to them. If it was a living person, it would be fine. Although the soul of a living person was very powerful, the soul and the body would be perfectly combined. It was very difficult for a soul-eating beast to eat the soul of a living person. It had to kill or seriously injure the person first before it could eat his soul. Of course, some particularly powerful soul-eating beasts could directly eat the soul of a living person.
But it was different for the undead creatures. The undead creatures were an alternative life form that was dominated by souls. Their souls didn't merge with their bodies as well as humans, which gave them another characteristic-they wouldn't die easily. Even if their bodies were shattered, as long as their Soul Fire wasn't extinguished, they could resurrect in another soulless body. This was the most troublesome part about the undead creatures.