Don't draw curtains at night

Avoid sleeping without hanging curtains: in folklore, there is a kind of ghost who likes to climb windows. If you don't pull the curtains when you sleep, it's easy to see the face outside the window when you wake up in the middle of the night, or when you encounter a "ghost knocking at the window", you hear the knocking at the window in the middle of the night. That's the ghost calling you, and then becoming a beautiful woman. So don't open your eyes when you hear the sound of knocking on the window.