Why did the "sage" in The Longest Day in Chang 'an fall in love with a Taoist Yan Taizhen?

Because the prototype of Yan Taizhen is Yang Guifei, the favorite of Emperor Xuanzong of the Tang Dynasty, and Yang Guifei was once a female Taoist in history, Yan Taizhen is set as the favorite of saints in the play.

Because the time setting of this play is nature conservation for three years. It coincides with the three years of Tianbao in the history of Xuanzong in the Tang Dynasty. The saint in the play loves Yan Taizhen very much, and the prototype of Yan Taizhen is Yang Yuhuan. This character also coincides with the real history. The reason why saints love Yan Taizhen is to start from the real history:

Yang Yuhuan is not the concubine of Emperor Xuanzong of the Tang Dynasty, but his daughter-in-law, the daughter-in-law of his son Li Mao. At that time, Yang Yuhuan was already a famous beauty. Tang Xuanzong met his daughter-in-law at a banquet and was immediately fascinated. At first, Emperor Xuanzong of the Tang Dynasty didn't think of it as his own, but he secretly felt pity. Until Wu Huifei, the favorite of Emperor Xuanzong of the Tang Dynasty, died suddenly, Xuanzong was hit hard and felt empty alone in the palace.

Later, by chance, he met his daughter-in-law, Yang Yuhuan, and Yang Yuhuan was good at singing and dancing and had the same hobby as Tang Xuanzong, which made Tang Xuanzong in an empty period gradually have the idea of keeping Yang Yuhuan for himself. But Yang Yuhuan was the daughter-in-law of Emperor Xuanzong of the Tang Dynasty. If he catches it, he will become the laughingstock of the whole world regardless of interpersonal relationships, which will damage his image as a wise SHEN WOO. But he can't make up his mind to give up such a great beauty.

So Tang Xuanzong thought of a good way: First, let Yang Yuhuan's identity change from a daughter-in-law to a female Taoist priest, and pray in the Taoist temple in the name of praying for Tang Xuanzong's mother, which is also called "too true". In fact, Yang Yuhuan has been living in the harem of Emperor Xuanzong of the Tang Dynasty. Becoming a female Taoist priest is just a means to hide people's eyes and ears, and then she is named a noble princess.

This is the story of Yan Taizhen's archetypal character, which explains why the saint in the play loves a female Taoist alone.