Yang Di wants to lead an army to capture the Liaodong alchemist: I watch the celestial phenomena at night, and someone is going to rebel.

At the end of the Sui Dynasty, Yang Xuangan, the minister of rites, fought against the Sui Dynasty and was finally defeated. The Yang Xuangan Rebellion kicked off the reign of heroes at the end of Sui Dynasty. Before the rebellion in Yang Xuangan, the warlocks in Sui Dynasty had predicted the position and orientation of the rebellion according to the changes of the astronomical phenomena. The alchemist's ability to accurately predict personnel amazed future generations.

On the eve of Yang Xuangan Rebellion, in the eighth year of Sui Dynasty, Yang Di personally invaded Liaodong. At this time, Yu twice deposed Yang-ti in order to prevent the country from being empty, and courtiers took advantage of it.

In 2000, when I personally marched to Liaodong, I called Yu to the location of the military camp and asked him if he could win. Yu expressed his opinion: "I think conquest can win." However, in my humble opinion, your majesty should not travel in person. " He advocated ordering the army to speed up and send troops by surprise in order to defeat the enemy quickly. Sending troops has always been expensive. If you use personal expedition and act slowly, it is futile. I hope Emperor Yang Di will be stationed in Lin Yu instead of traveling. The emperor was very unhappy, but he accepted Yu's suggestion: "Since you find it difficult, stay here."

The following year, Yang Di conquered North Korea and asked about the quality of North Korea again. What will happen this time? Taken quality still adhere to the original view, don't want the emperor Yang Di to travel. Yang Di was furious: "If I go there alone, I can't win. Now, can I succeed if I only send one person? " The emperor didn't listen to Yu's advice and set off with his army.

Soon, does Yang Xuangan uprising in Liyang, assistant minister of the Ministry of War Hu Sizheng fled to North Korea and reported to Yang Di. Yang Di was surprised and quickly led the army back. At this time, Emperor Yang Di realized that this was an intention to stop him from traveling twice. It turns out that its essence is to worry that the country is unguarded, and officials will take advantage of it to confuse people.

The emperor asked Yu Yang Xuangan if he could do it. Yu Yue said, "Although Yang Xuangan is strong, his name is not as good as his father's. He just took advantage of people's dissatisfaction and hoped to escape successfully. Now that the world is unified, Yang Xuangan cannot be easily shaken. " Yang Di asked him, "What will happen if Mars enters Beidou now?" Qualitative analysis said: "Beidou, located at the junction of Chu and land, is the fief of mysterious feeling." Today's fire is weak, and Yang Xuangan will never achieve anything. "

As a result, Yang Xuangan was defeated and killed.

At the same time, another person predicted that Yang Xuangan would defect, and he was Lu Taiyi. Lu Taiyi was called a prodigy, but he didn't pursue fame and fortune when he grew up. Lu Taiyi is knowledgeable and good at divination, arithmetic and other magical techniques. Every time he makes a prediction, he is right and respected by everyone. Many people came from afar and worshipped him as a teacher.

In the ninth year of the great cause, Lu Taiyi and Yu Zhi came to Liaodong with the imperial chariot. One day, Mrs. Lu observed the celestial phenomena and found a soldier's soul in Liyang, indicating that someone was stirring up soldiers and causing trouble to the country, so he reported: "There is a soldier's soul in Liyang." Sure enough, a few days later, the news of Yang Xuangan's rebellion proved Lu Taiyi's prediction.