Walter Mosley said this quote

These short stories are vast structures existing mostly in the subconscious of our cultural history. They will live with the reader long after the words have been translated into ideas and dreams. That's because a good short story crosses the borders of our nations and our prejudices and our beliefs. A good short story asks a question that can't be answered in simple terms. And even if we come up with some understanding, years later, while glancing out of a window, the story still has the potential to return, to alter right there in our mind and change everything.