If you pass on the throne to your nephew, you have never heard of an emperor who will consecrate his aunt's coffin in the ancestral temple.
In fact, in the later period of Wu Zetian's administration, she was also very upset in order to choose her successor. His two sons failed to live up to expectations, but Wu Sansi, the niece's nephew, was excellent. So she has the idea of passing the throne to her nephew. In this way, the Zhou Dynasty can last forever. After all, the Da Zhou Dynasty, which I worked so hard to create, would be a draw with a sieve if it were still in power in Li Tang.
So she went to her old friend Di Renjie to ask for his advice. Di Renjie said so. No matter how close the relationship between aunt and nephew is, it must be a close relationship between mother and son. Moreover, if you pass the throne to the Li family, your spiritual position will be enshrined from generation to generation. If you pass it on to the Wu family, the result will be different. After listening to these words, Wu Zetian suddenly realized. Finally, he made his son Li Xian emperor. Li Tang can continue, and Di Renjie really contributed.
I think it's actually a better choice to put this problem into the present. For example, after you leave, will you leave your property to your children or to your nephew? It's basically for your own children. Brothers and sisters' children are still strangers after all. Besides, they have no obligation to support you. In the end, it must be your own child who will serve in your hospital bed.
As an emperor with a vast world, there are naturally many problems to consider. In the final analysis, the relationship between aunt and son is still close. The son keeps his own blood, but the nephew does not keep his own blood. Plus, when Wu Zetian became emperor, there were already many people who opposed it, not to mention letting Wu Sansi be emperor. If Wu Sansi were to take the lead, the world would be in chaos. Under comprehensive consideration, Wu Zetian chose to return to Li Tang.