Significance of wearing tortoise skull

There is no textual research on ancient books This is just a folk practice. Turtles and turtles are long-lived animals. In ancient China, people thought that long-lived animals had aura and were sacred animals. So turtles and soft-shelled turtles have always been regarded as evil spirits. The head is the headquarters of animals. Without the head, animals are not animals. The head condenses the essence of the whole animal. Therefore, we folk use glans and tortoise skulls as decorations to ward off evil spirits. That's the reason.