How does Kino's father respond when Kino thinks it is cruel for the sky and sea to be calm again?

Over time, his body will renew itself, and his mind will begin thinking, making him live. Jiya cannot and should not forget his family, but he will someday accept their deaths as part of his life and learn to live with them dead as he lived with them alive. He will carry them in his memories and know that they will live in him as long as he is alive.