What is the plot of short story black wall by liu xin Wu?

The story "Black Wall" by Liu Xinwu follows the narrator's recollection of his childhood in a village and his fascination with a mysterious black wall that separates the village from the outside world. The wall becomes a symbol of isolation and confinement, representing the limits of the villagers' knowledge and experiences. Through the story, the narrator reflects on themes of curiOSity, fear, and the desire to explore beyond the confines of one's reality.