This is the final, glorious image from "Sunshine through the Rain" the first chapter of Kurosawa's film Dreams. A young boy is trying to get home.
In this story the boy is warned by his mother not to go into the woods during a sun shower, as that is when the foxes hold their weddings and they do not allow humans to witness the ritual.
He hides behind a large tree but the foxes spot him as he runs away.
He returns home to find his mother waiting for him.
"You went and saw... something you shouldn't have. An angry fox came looking for you. He left this." She hands him a sword. "You are supposed to kill yourself. Go quickly and ask their forgiveness. Give the sword back and tell them how sorry you are. They usually don't forgive. You must be ready to die."
She tells him that she cannot allow him to enter their home until he receives the fox's forgiveness. "But I don't know where they live." says the boy, panicked. "You'll find out. On days like this there are always rainbows. Foxes live under rainbows."
And so begins the boy's journey to find his way home.
