Story of a Fallen Head by Akutagawa Ryūnosuke

But did Khashoji really faint when he was thrown from his horse? It is true that he had been unconscious of any pain from his wounded neck, and he distinctly remembered lying helpless on the muddy bank of a lonely river, smeared from head to foot with mud and blood. As he lay there he gazed up into a clear blue sky, and across his vision a few branches of willows waved to and fro.

How densely blue the sky seemed to him compared with any he had ever looked at hitherto! It appeared as if he were peering from below into a gigantic, inverted jar of indigo. At the bottom of the jar, clouds like gathering foam were drifting, and as fast as they came they disappeared again behind the quivering leaves of the willows.