It was the Tang Dynasty. As we all know, the Tang Dynasty was the largest country in the world at that time. Even the European countries on the other side of the globe have heard of the prestige of the Tang Dynasty and are very yearning for it. You can imagine what it's like to be a neighbor of the Tang Dynasty. Due to the geographical location, the Tang Dynasty did not intend to embarrass the Tubo Dynasty, and the Tubo Dynasty did not dare to put forward any bad ideas to the Tang Dynasty because of its strength. Accurately speaking, in the view of the Tubo Dynasty at that time, the Tang Dynasty was their idol.
The Tubo Dynasty learned all the progressive cultures from the Tang Dynasty. Whether it was folk life or royal rule, the Potala Palace was originally built after the imperial palace. Of course, this so-called imitation does not refer to the imitation in appearance, but the Tubo dynasty wants to establish a political center belonging to its own kingdom and strengthen their rule. Because they saw the Central Plains Palace? Tang Guo? I saw that the Tang Dynasty was the center of the world and the palace was the center of the Tang Dynasty. I saw that the existence of the palace greatly stabilized the rule of the royal family.
It is precisely because of this ruling reason that the Tubo king Cai Chao built the Potala Palace, and after the successful construction, the Potala Palace really became the most magnificent building on the Qinghai-Tibet Plateau at that time and became the center of people's rights and beliefs.