Some evil is supernatural and unholy in a demonic sense. Evil can come in many ways, shapes and forms. Then there is a time when evil comes in a somewhat primal..... Human way that is unexplainable unless you see it with your own eyes. There is a forbidden knowledge that when in the hands of one man he will use it for personal gain or power beyond meaning. That man will try to succeed in this world in mad way that only he understands. Then what he will create with this knowledge can only be a pure evil.... As well as being it himself.