1. Gu Chen is one of the evil spirits. Ancient numerologists referred to it as an evil spirit.
2. Divine evil spirits include auspicious gods and evil evil spirits. Originated from ancient myths and legends. It is said that it can bring disaster and blessing to mankind. A term used by ancient soothsayers. The heavenly stem is the sun, the earthly branch is the chen, and the branch in Liujia that does not match the heavenly stem is called Guchen. For example, if there is no Xuhai in Jiazi ten days, Xuhai will be Guchen; if there is no Shenyou in Jiaxu tendays, Shenyou will be Guchen. And so on. Superstition believes that if a person's birth date is in the horoscope, it will be unlucky.