“Your father didn't go in that box because he wanted to. There was a reason. He had to go. If your father could see from his box and see you crying every day, what do you think he would think? I think it would make him sad. You know how much your father loved you. Don't you think it would be painful for him to see the unhappy face of someone he loved? So why don't you smile every day so that your father can smile from his box? Our smiles allow him to smile. Our happiness allows your father to be happy in his box." On hearing this explanation, Kei's eyes welled up with tears.”