真夜中に現れた亡き祖父の幽霊話

What does “金縛り” (kanashibari) mean in Japanese?

金縛り (kanashibari) literally means “tied up with metal” — 金 (“metal”) + 縛り (“binding,” from 縛る “to tie down”). It’s the everyday Japanese word for sleep paralysis: waking up unable to move, sometimes with a lingering sense someone is in the room. Long before anyone understood REM sleep, Japanese folklore blamed the paralysis on spirits pinning the sleeper down — a belief still baked into the word itself.

In the clip, the speaker describes waking up in kanashibari, unable to move, only to see his late grandfather sitting silently beside the bed. When it “released” him and his grandfather vanished, he realized it had been a farewell visit. The term reportedly traces back to an esoteric Buddhist binding technique used to immobilize opponents, later transferred to describe the body’s real paralysis during a half-waking dream state. No scientific term has replaced it in everyday speech — even doctors' patients still say 金縛り, not “睡眠麻痺.”