The first story to emerge from that prompt eventually became “Homework Assignment #3,” published in The Militant Grammarian. In "Homework Assignment," a college student explains to his writing professor that he tried several approaches to writing about a room but none of them worked--because he realizes there's a room he needs to write about but can't because that room holds too much emotion.
"Homework Assignment #3" actually contains five or so self-contained story ideas, each with subtext to the room he can't write about. Each idea is based on a room and a different emotion. "Shrine to the Cult of Joy" is one of the stories my initial narrator considered but decided not to write. Before being published in The Militant Grammarian, "Shrine to the Cult of Joy" won honorable mention at the 2023 Marblehead Literary Festival.
I've written another story based on an idea from "Homework Assignment #3," and now need to revise it. I will be writing additional stories about rooms and emotions based on "Homework Assignment #3."