I don't know if you have found a problem, throughout Chinese history, whether it is the people or the Heavenly Son, people in ancient times were more superstitious, they especially believed in ghost legends, even the wise and divine Martial Emperor Han Wu, Tang Zong Song Zu is no exception.
In his later years, Qin Shi Huang, Emperor Wu of Han, and Emperor Taizong of Tang were particularly superstitious about the art of Dan Yao, especially Emperor Wu of Han was particularly superstitious because of the outbreak of the "Witch Rebellion", and Tang Taizong Li Shimin was also addicted to Dan Yao, resulting in an accidental death after taking Dan Yao.
In addition to indulging in the art of immortality, for such emperors, they were also very worried about the longevity of the dynasty. Because after all, it is the Jiangshan that they have single-handedly fought, of course, they hope that their own Jiangshan will be thousands of generations after this, so this is also an important reason why they are addicted to the art of immortality.
Of course, li shimin was not at ease with the art of immortality, and at that time, in order to ensure that his dynasty could be passed down through generations, Li Shimin specially consulted two strange people of the Tang Dynasty at that time: Li Chunfeng and Yuan Tiangang.
Li Shimin asked Yuan Tiangang when the Tang Dynasty would fall? Yuan Tiangang: When the pig goes up the tree
As the de facto opener of the Tang Dynasty, Li Shimin can be said to be truly a great talent, and at the age of thirteen, he once followed his father Li Yuan out of Jinyang to fight with the Xiongnu, and the experience of this young age helped him to conquer the world later.
After Li Yuan "raised an army in Jinyang", Li Shimin often led the Tang army out to fight, and it can be said that half of the territory of the Tang Dynasty was fought down by Li Shimin. However, due to Li Yuan's eccentricity, Li Shimin and the crown prince Li Jiancheng subsequently broke up, and finally Li Shimin launched the "Xuanwumen Revolution" for Qiang, and from then on, the Tang Dynasty changed hands.
Although Li Shimin was born in the army, he also knew the truth that "water can carry a boat and can also overturn a boat", so during his reign, he worked hard to rule and created the "rule of Zhenguan".
But even for people like Li Shimin, he was worried that his dynasty would perish, so at that time, he specially found strange people Li Chunfeng and Yuan Tiangang from the people to specialize in divination.
These two people can be said to be very famous in history, and Yuan Tiangang's "Push back map" is even a historical mystery, and no one knows how accurate Yuan Tiangang's divination technique is.
As time flew by, Li Shimin also gradually grew old, and he was also worried that the Tang Dynasty he founded after death would eventually perish, but he also knew that the dynasty would eventually perish one day, so he specially asked Yuan Tiangang what the Tang Dynasty would perish and at the hands of whom.
However, Yuan Tiangang also knew that this issue was very sensitive, so Yuan Tiangang refused to disclose it on the grounds that "the heavenly opportunity cannot be leaked", but he could not stand Li Shimin's repeated entanglement, and finally Yuan Tiangang answered six words: pigs on the tree, Tang Dynasty death.
And Li Shimin was relieved to hear this sentence, because it was impossible for a pig to go up a tree, which also showed that the Tang Dynasty's Jiangshan was thousands of generations, and Yuan Tiangang died shortly after saying this.
The meaning of "pigs on trees, Tang Dynasty dead"
"Pigs on the tree, the Tang Dynasty dies" of course, will not be the Tang Dynasty will perish when the pigs go up the tree, so this "pig" is not a "pig", this "pig" refers to the warlord Zhu Wen at the end of the Tang Dynasty, because he also destroyed the Tang Dynasty.
In the last years of the Tang Dynasty, due to the increasing corruption of the Tang Emperor, rebels everywhere caused rebellions everywhere, which finally triggered the largest catastrophe in the Tang Dynasty, the "Yellow Nest Uprising", and Zhu Wen joined the Yellow Nest army at this time.
However, after joining Huang Chao, Zhu Wen also realized that Huang Chao was not a person who could become a big thing, and soon after Zhu Wen rebelled against Huang Chao and joined the Tang Dynasty army, and Huang Chao was eventually killed under the circumstances of various emissaries and rebellions.
However, at this time, within the Tang court, Tang Zhaozong Li Ye wanted to use Zhu Wen's hand to eliminate the eunuchs in order to eliminate the eunuchs' power, and Zhu Wen also took this opportunity to enter Chang'an.
Tang Zhaozong's wishful thinking was not bad, but he really brought the Tang Dynasty into the land of ruin: Zhu Wen did destroy the eunuchs after entering Chang'an, but he also took the opportunity to place his henchmen around Tang Zhaozong, which led to Tang Zhaozong Li Ye's eventual lack of credibility, which was equivalent to saying that he drove away a wolf but attracted a tiger.
Soon after, Zhu Wen killed Li Ye of Tang Zhaozong, and soon after overthrew the Tang Dynasty and set fire to Chang'an, and Zhu Wen also established Hou Liang shortly after this, kicking off the "Five Dynasties and Ten Kingdoms".
So this is a layer that Li Shimin did not expect, Yuan Tiangang means that in the end Zhu Wen will replace the Tang to open a new era, of course, even if he knows that Li Shimin is ultimately helpless, because sometimes the number of days cannot be calculated, and the change of dynasties is inevitable after all.
But from another point of view, this is also the pit that Yuan Tiangang dug for Li Shimin, because once Yuan Tiangang tells the truth, then the next second he may die without a place to die, because for the monarch, you can even know when the dynasty will fall. So that's the unpredictability of heaven.