Changing the everyday scenery

I was reading an interview of Hirokazu Koreeda on his movie "Nobody Knows".
It's a movie in 2004, about four children, each a child by a different father and abandoned by their mother. They are then forced to survive on their own.

He talked about one letter he received from someone who watched the film.
The letter said,
"After leaving the cinema, I took a train home. When I arrived at a station near my house, I saw children playing in the park even though it was late at night. It wouldn't have caught my eyes before but I kept thinking about why they are playing at such late time, who is waiting for them at home. So I couldn't help but looked for those children next day."
Upon reading the letter, Koreeda thought he wasn't wrong in making this film.
It is because he believes it is important to create a movie that changes / challenges how people look at everyday life or scenery that they are used to, rather than creating a film that has a strong message itself.

This gave a little sparkle in my head. I hope I could do that in my own work too.
It's not about how loud a work can speak, maybe it's something more quiet. Maybe it's an absence that gives absolute presence.
And I hope my English interpretation is ok to read above...