Why was it so cold in Xu Xian when White Snake came out of the tower?

Because when White Snake came out of the tower, Xu Xian had been a monk for many years, and he had already looked down on the world of mortals, so Xu Xian was very indifferent when White Snake came out of the tower.

In The Legend of the New White Snake, Xu Shilin Lei Feng saved her mother. She knelt down step by step with frustration and bitterness, and knelt down with expectation and hope. So pious and filial, how can you not touch God? Finally, the Buddha's imperial edict was issued, and the White Snake went out of the tower.

Mother and son are ecstatic to be reunited. However, when Xu Xian saw the white snake again, because he had been a monk with Fahai for many years, he was already indifferent to the things in the world of mortals. So after seeing the white snake, Xu Xian seemed like a lifetime ago and looked indifferent.

Related information:

The legend of White Snake was mature and popular in Qing Dynasty, and it was a model of China folk collective creation. This paper describes a tortuous love story between a snake spirit who cultivates human form and human beings. Stories include the story of Wupeng boat borrowing an umbrella, the story of White Snake stealing Ganoderma lucidum, the story of flooding Jinshan, the story of broken bridge, the story of Leifeng Tower, the story of Xu Xian Shilin sacrificing the son of the tower, and the story of Fahai escaping from the crab's stomach. It expresses the people's admiration for the free love between men and women and their hatred for the unreasonable bondage of feudal forces.

At present, the earliest shaping story of the white snake legend is recorded in Feng Menglong's Warning Story, Volume 28, White Snake Leifeng Pagoda in Yongzhen. In the early years of Qing Dynasty, Huang Tu's "Leifeng Pagoda" (Wang Shan Pavilion) was the earliest opera in China. He only wrote that the white snake was suppressed under the Leifeng pagoda, and there was no sacrifice to the pagoda. Later, The Old Manuscript of Liyuan (probably written by Chen's father and daughter, but the existing score is incomplete) is a widely circulated book, with the plot that a white snake gives birth to a child.