When the playwright writes the script, they provide the dialogue and some minor descriptions of character actions and setting, but they leave a lot of space for the directors and actors to make it their own. If the playwright is too prescriptive, they suck the joy and possibility out of the roles of those further down the line.
It’s a good lesson to think about when we work with others on both professional and personal projects. There’s always a temptation to be overly prescriptive, but much of the magic happens when we give people space to make it their own.