When I was a child, I listened to my grandmother tell ghost stories about how people would go to the underworld when they died, and that was another world. People and ghosts are like yin and yang. The love between people and ghosts is not over, just like the reluctance to give up when yin and yang alternate. The human world and the underworld are essentially like the balance of yin and yang. It's just that there are always some ambitions who want to upset the balance. But when such a disaster happens, there must be justice...... of people stand up. For example, I am in Form 2.