"People talk about ghosts, but ghosts talk about no one."
There are two kinds of nights in the world, one for living people and one for dead ghosts.
The former has lights, smoke, and human voices; the latter has no light and no dreams, only the cold sound of the wind passing through the grass.
The ancients said: "Yin is born inside and manifests itself outside."
So ghost stories are actually just reflections of people's hearts - the more a person is afraid of something, the less he can escape from it.
Perhaps ghosts never do evil;
Those who do evil are those who use "no ghosts" as an excuse to do ghostly things.