Worshipping the Black and White Ghosts was a controversial topic. Some people believed that the Black and White Ghosts were not suitable to be worshipped in the family because they were regarded as reapers and were responsible for punishing evil in the human world. There was no scientific basis for this statement, and it could have a negative impact on family members. However, there were also people who believed that the Black and White Ghosts could be worshipped in the family, but it was best to worship only one of them. The girls would worship the black one, and the boys would worship the white one. They would also be placed at the door, facing the door. In addition, someone mentioned that the Black and White Ghosts were worshipped in Taoism and could be worshipped together with Ksitigarbha. In general, there were different opinions about the things to take note of when worshipping the Black and White Ghosts. There was no clear scientific basis. Therefore, it is recommended to follow a scientific and rational attitude, believe in science, and respect science.
There was no clear scientific conclusion regarding the phenomenon of seeing the Black and White Ghosts. Some people claimed to have seen the Black and White Ghosts come to pick them up before or when they were about to die, but whether these really existed remained a mystery. Psychologists studied cases of near-death experiences and concluded that these people often experienced various situations, but they could not be verified from a scientific point of view. It was possible that these scenes were just illusions of the dying, or a psychological state. There was no clear conclusion as to whether the Black and White Ghosts really existed.
The Black and White Impermanences were a pair of gods in traditional China culture, and they were also the most famous reapers. They held shackles and handcuffs, specialized in capturing ghosts, assisting in rewarding good and punishing evil, and were responsible for bringing people's souls to hell. Among them, Black Impermanence was fully dressed in black, while White Impermanence was fully dressed in white. Their names were Fan Wujiu and Xie Bian. The Black and White Impermanences weren't called Black Impermanence and White Impermanence because of the difference in skin color or clothing color. It was because black represented yin and white represented yang. Their image and duties were related to the theory of Yin and Yang. In folk tales, they were described as the tall, thin, pale-faced White Impermanence and the fierce-looking, short Black Impermanence. Their appearances and names might be different in different regions, but they all represented the difference between yin and yang and the existence of souls after death.
The Black and White Impermanences were nicknamed the Soul Guide.