For the sake of righteousness, he gave up reincarnation and persisted in Chang'an;
For the sake of the people, he turned around and left Chang'an;
What cannot go back is Chang'an, and what is left behind is Chang'an. How much rebellion and loyalty have been dissolved in this place; bricks, tiles, and glazed glass have built its outline, and blood and bones have painted its color. When it collapsed, how many souls had no place to go...