The origin of the Black and White Impermanence's name was because the Black Impermanence's original name was Fan Wujiu, and the White Impermanence's original name was Xie Bian. The two of them had been good friends since they were young and were like brothers. According to the legend, one day, they went out to do something together, but they encountered heavy rain and floods under the bridge. When White Impermanence went back to get the umbrella, Black Impermanence chose to wait under the bridge. However, the flood was getting bigger and bigger, and Black Impermanence was eventually washed away. When the White Impermanence returned, he couldn't find the Black Impermanence and was very sad. In order to express his gratitude, the King of Hell gave them the name Black and White Ghosts. Therefore, the Black and White Ghosts 'names came from their original names and this story.
In the Narnia series, there is a white horse named Bree. He was a very proud and talkative horse who played an important role in the adventures. He was one of the first talking horses the children met in Narnia.
White impermanence, also known as Xie Bi 'an, lived impermanence, Qiu Bai's hair turned white. Black impermanence, also known as Fan Wujiu, has a share of death.