We can learn from many Tang Dynasty classics that Yuan Tiangang here can be said to know astronomy from above and geography from below. He is also called the first Feng Shui master in Chinese history. According to legend, he is He is well versed in ancient and modern times, and it is even rumored in folk history that he can predict the future of Empress Wu when she comes to power. This shows that he is very powerful.
As the saying goes, too much talk leads to mistakes. A prophecy he made among the people about the inheritance of the royal family will definitely be known to the people in the court. These ministers also took advantage of this opportunity to inform, so much so that Emperor Taizong of the Tang Dynasty specially ordered a thorough investigation. Of course, I have no clue about this matter. However, the coincidence of history still found Wu Meiniang, so that Wu Zetian had no choice but to settle in Ganye Temple because of the prophecy of this charlatan. "What God has decreed, man cannot do" is also an argument for Yuan Tiangang's prediction, so Wu Meiniang later transformed into the Wu Zetian we know now.
The high-ranking Empress Wu would definitely have to settle accounts later. I thought Yuan Tiangang would die, but how could a man who knew astronomy and discern the past and present be beheaded? Then we can only prophesy again, this time the prophecy is about Wu Zetian's vital interests, that is, these ten words "Your Majesty is better than Luoshui, but worse than Luoshui" saved Yuan Tiangang's own life.
During the period of Wu Zetian, the capital was originally not in Luoyang. Later, it was his own decision to move to Luoyang after weighing and considering. When Yuan Tiangang said this, he had some scruples in his heart, for the sake of future generations. , so he spared Yuan Tiangang's life, thinking that keeping this person would help him in the future. So this time we can see that Yuan Tiangang's fate is indeed in his own hands, so much so that Empress Wu did not dare to execute him directly.