Hello. You did not enter the text to which this question refers. However, from the context of the question, we can see that you are referring to "Trifles" a play written by Susan Glaspell. In that case, I hope the answer below can help you.
Answer:
Because she wants to create a sense of mystery in readers and viewers of the play, leaving them anxious about the unfolding of the plot and curious about those elements that are not shown, but are commented on by the other characters, will be presented.
Explanation:
"Trifles" is a one-act theater piece that features an investigation into the murder of John Wright, inside the farm where he lived with his wife, Winnie, who is the main suspect of having committed the crime. All the neighbors in the area are involved in the investigation in some way and although they all comment on the crime, Wright's body, the house and the Wrights, none of these elements are presented. The author does this to intensify the suspense, cause doubts in readers and viewers and make them anxious and curious about the plot.
