The most frightening sentence in Japanese ghost stories is about a charcoal basket
There's a nine-line ghost story in Japanese that gets treated as a masterpiece. Not a well-known one internationally, as far as I can tell — I haven't found it in English. Here it is in full, translated from the original:
A child whose mother had died woke suddenly one night. The room was upstairs. His father and two or three others were asleep beside him.
The stairs creaked, someone coming up. The paper door slid open and she came in. It was his dead mother.
The child watched her, thinking, mother's here. She passed the entrance where the brazier and the charcoal basket had been pushed aside, and started toward his pillow, and as she did the hem of her kimono caught the charcoal basket, and the basket turned, right around from left to right, and came to rest in a different place.
At that moment his grandfather and everyone else lying nearby all began to groan in their sleep at once.
That's the whole thing.
The reason it's regarded so highly comes down to one detail: the basket moved.
Yanagita Kunio, who founded folklore studies in Japan, wrote about a nearly identical account in his 1910 collection of tales from Tōno, and his comment on it is the most quoted line in Japanese writing about ghost stories. He said that because the charcoal basket spun around, the story becomes real. Mishima Yukio returned to this repeatedly. He called it the point where the supernatural acquires physical weight.
Here is what they mean.
A ghost in a Japanese tale is normally something you see. It has no substance. The whole experience stays sealed inside the person perceiving it, which means it can always be explained away — grief, a dream, a boy half asleep who wanted his mother.
The instant the hem catches the basket, that exit closes. The basket is a real object. It was in one position and now it is in another, and it will still be in the new position in the morning, and anyone can walk over and look at it. The dead woman has entered the world of things.
Note that the story never says she touched it on purpose. She isn't trying to prove anything. She's crossing a room to reach her son and her clothing brushes something in passing, the way clothing does. It's an accident. That's precisely why it works — a deliberate sign could be doubted, but nobody stages an accident.
And note what the ghost does not do. She doesn't speak, threaten, or explain. She walks toward the child's pillow. That's all she was ever doing.
The last line does the other half of the work. Everyone else in the room starts groaning in their sleep at the same moment. They don't wake. They don't see her. But the sleeping body registers something the sleeping mind doesn't, and it registers it collectively, which means whatever came up the stairs was in the room for all of them and not only for the boy.
The child is the only one who sees his mother. He is also the only one who isn't afraid.
Source: Tanaka Kōtarō, "Sumitori" (The Charcoal Basket), from Nihon Kaidan Zenshū, 1934. Tanaka died in 1941, so this is public domain in Japan. Translation mine. The related passage Yanagita discusses is section 22 of Tōno Monogatari (1910). A sumitori is a woven basket, usually bamboo, that sits by the brazier and holds the charcoal — an ordinary object, present in every house, which is the point.