In the story of Li's choice of cemetery, Yuan Tiangang and Li's final prediction came true.

Yuan Tiangang and Li were very famous intellectuals in the Tang Dynasty. They often calculated for the emperor. Wu Zetian knew that they were very familiar with divination and geomantic omen. At that time, Wu Zetian wanted them to help him choose a cemetery. Wu Zetian summoned two people to express their demands for good feng shui. This is Long Mai, and it will not be stolen easily.

After receiving the order, Yuan Tiangang came back to me after 49 days, saying that the chosen tomb was in the northwest, and a copper coin was buried in this place. Eighty-one days later, Li came back and said that the tomb he chose was also in the northwest, leaving a golden hairpin in the tomb.

According to the address left by the two, Wu Zetian ordered people to verify it. Unexpectedly, two people actually chose the same place. After digging the mark, they found that Chai Jin was only inserted in the copper coin, which was exactly the same. When Wu Zetian saw this scene, she summoned two gods, rewarded them and built a mausoleum here.

Although Li and Yuan Tiangang often fought against Shangguan, they were good friends and mentors. One day, two people had a competition to choose a cemetery for themselves. The cemeteries chosen by the two men are behind the Dugong Temple Mountain on the outskirts of Chang 'an County, but the distance is only a few hundred meters.

Shortly after the two men chose a cemetery for themselves, they fell ill. Li said before his death that his cemetery will be lost in the future, and the cemetery in Yuan Tiangang can remain unchanged for thousands of years.

Sure enough, after the demise of the Tang Dynasty, Li's cemetery was visited by grave robbers, but Yuan Tiangang's cemetery, which was hundreds of meters away, was not stolen, and it was still well preserved. Such a thing also verified Li's prediction before his death.

Yuan Tiangang's cemetery was not stolen because it was within the military camp. Naturally, there will be no grave robbers in places that become military strongholds. Li's cemetery was not so lucky. It was stolen and destroyed. It is also said that Li was not buried here at all, but his cenotaph was buried in this place, and no one knows what the truth is.