In fantasy novels, devouring other people's spiritual roots could increase one's strength. This usually appeared on some powerful mages or demons. They could obtain powerful strength and skills by devouring the spiritual roots of other creatures. However, there was also a risk in devouring other people's spirit roots. If the Devourer had a strong spiritual root, the devoured spiritual root might become abnormally strong and even cause the Devourer's spiritual root to be unbalanced. In addition, devouring spiritual roots might also cause damage to the devourer's spiritual power. Therefore, devouring spiritual roots was not an unlimited way to strengthen oneself. In fantasy novels, devouring other people's spiritual roots was a common method of strengthening, but it had to be used carefully to avoid unnecessary losses.