In mythology 
In Chinese mythology, it is believed that all things are capable of acquiring human forms, magical powers, and immortality, provided that they receive sufficient energy, in such forms as human breath or essence from the moon and the sun.
The fox spirits encountered in tales and legends are usually females and appear as young, beautiful women. One of the most infamous fox spirits in Chinese mythology was Daji (妲己), who is portrayed in the Ming novel Fengshen Yanyi. A beautiful daughter of a general, she was married forcibly to the cruel tyrant Zhou Xin (紂辛 Zhòu Xīn). A nine-tailed fox spirit who served Nüwa, whom Zhou Xin had offended, entered into and possessed her body, expelling the true Daji's soul. The spirit, as Daji, and her new husband schemed cruelly and invented many devices of torture, such as forcing righteous officials to hug red-hot metal pillars. Because of such cruelties, many people, including Zhou Xin's own former generals, revolted and fought against Zhou Xin's dynasty, Shang. Finally, King Wen of Zhou, one of the vassals of Shang, founded a new dynasty named after his country. The fox spirit in Daji's body was later driven out by Jiang Ziya (姜子牙), the first Prime Minister of the Zhou Dynasty and her spirit condemned by Nüwa herself for excessive cruelty.
There is mention of the fox-spirit in Chinese Chán Buddhism, when Linji Yixuan compares them to voices that speak of the Dharma, stating "the immature young monks, not understanding this, believe in these fox-spirits..."(Source: The Record of Linji, Honolulu 2008, p.218)
Modern usage 
See also 
- "Fox-spirit Daji invents the Paoluo torture". Chinese Torture/Supplice chinois. Retrieved 2006-12-26.
- Cheng, S. T. "A critical review of Chinese Koro." Culture, Medicine and Psychiatry 20(1):67-82 (1996).