Where does "I am destined to live long and prosperous life" come from? What's the meaning?

Translation: The emperor’s order is given to heaven, (sacred and inviolable), and it will prosper forever.

Source: Qin Yingzheng unified China and was called the "First Emperor". Prime Minister Li Si was ordered to use the He family's jade as the emperor's seal. He ordered Prime Minister Li Si to write in seal script "I have been ordered by heaven to live long and prosperous", which is in the shape of a dragon and a phoenix. Sun Shou, the king of jade workers in Xianyang, ground the He family's jade carefully and carved it into Seal. It is passed down from generation to generation, so it is called "the national seal".

Extended information

Chuanguo Jade Seal: referred to as "Chuanguo Seal", it was engraved with Lantian jade by the Prime Minister Li Si of the Qin Dynasty on the order of the First Emperor. It is the official seal of the orthodox emperors of China. Certificate.

It is four inches in diameter and has five dragons on it. The front is engraved with the eight seal characters "Ordered by Heaven, and you will live forever" written by Li Si as a token of "the imperial power is granted by heaven and is orthodox and legal".

After the Qin Dynasty, emperors of all dynasties regarded this seal as a talisman, treating it as a rare treasure and an important weapon of the country. If you get it, it symbolizes your "order from heaven", while if you lose it, it means you "have run out of energy". Anyone who ascends to a great position without this seal will be ridiculed as a "white emperor", showing lack of confidence and being despised by the world.

Those who wanted to be emperors in the past dynasties fought for it. As a result, the imperial seal changed its owner many times and traveled around Chi County in China for more than 2,000 years, then disappeared and disappeared. No trace, sighing.