What is the national treasury? Why open the vault?

The eight characters have the saying of opening a treasury, which has existed since ancient times. But no one said whose treasury it is, or the state's? Is this about work? This was left by your ancestors. Nobody cares about you, but if your ancestors have become historical celebrities, you are not allowed to open his treasury! The treasury is nothing more than the tomb of the five elements. The fortune teller taught people to open it, but he didn't bring his hoe. Doing this job gave Mr. Geography a bowl of rice to eat. Besides, if you open the treasury, the money is destined to belong to the Lord? No one flocked? Opening a vault means investing in business and making money with money. That's why we need to open the vault. This money will not increase the value of the national treasury, but investment is also risky. In case the money doesn't come back after opening a vault, why not open it? Therefore, the theory of opening a treasury is aimed at people who can profit from the eight characters, and most people don't think much.