Ocean Vuong said this -

Vuong has stated his view of fiction as a moral vehicle. Discussing On Earth We're Briefly Gorgeous, he said: "Fiction is strongest when it launches a moral question. When it goes out and seeks to answer. The questions that we couldn't ask in life because the costs would be too much. Fiction and narrative art give us a vicarious opportunity to see these questions play out, at no true cost to our own."

(from Wikipedia)

I’m not sure I totally understand what he means, esp. the part about ‘asking moral questions we can’t ask in life because the costs would be too much’.