The origin of this clip is not documented in the information available for it, so it is best understood as an online meme sound rather than a track tied to a confirmed film, show or artist. Its title is written in pinyin, the romanised form of Chinese, and its wording evokes a nightmare that lingers or haunts. That dark association helps explain why it has been picked up for suspenseful edits and reaction clips, even though it remains an obscure find with a small audience. Its continued use depends less on a famous source than on the mood it creates.