Situation: someone is writing a novel in which one of the characters goes mad. During the composition he himself becomes mad, and finishes it in the first person.
… Kierkegaard, Papier II A 634.
A man sets himself the task of portraying the world. Through the years he peoples a space with images of provinces, kingdoms, mountains, bays, ships, islands, fishes, rooms, instruments, stars, horses, and people. Shortly before his death, he discovers that the patient labyrinth of lines traces the image of his face.
… Jorge Luis Borges