To vote for local politics that will help the community in my opinion. To volunteer around my area to help the area flourish. Have my pets fixed or kept in an enclosure they can’t get out of to help prevent invasive species.
The writer's world is another way of saying; "The scene that is being set for the story to be told. Time, Location, Characters, Mood, Situation, etc.
For example, If you were telling a story about Dungeons and Dragons, perhaps you would mention that the main characters, Corlon, a Fighter and Esmerelda, a Sorceress are Trapped in a Dragon's Cave guarded by a Large one-eyed Cyclops and a Very Large Hungry Green Dragon. And so on.