Michael Morpurgo said this quote

When I think of Tomodachi, I think of your mother. Your mother, she too lose her baby. She lose you. That very sad thing for her. Maybe she come looking, and she not find you. You not there when she come. She think you dead for ever. But she see you in her mind. Now as I speak maybe she see you in her mind. You always there. I know. I have son too. I have Michiya. He always in my head. Like Kimi. They dead for sure, but they in my head. They in my head forever.