There are always some people who can't be together no matter what...
But it doesn't matter, he thought. He believed that we would always see each other again.
He will save up his longing for the other person one by one, and give them all to that person when he sees him again.
(A "collection of stories from the brain", excerpting one or several fragments from ancient poems, and then writing down the stories in the "brain", is the source of this "novel")