There was no one guarding this place.
Only some rules were recorded on a stone tablet. Those who entered had to pay 100000 great Dao crystals. There were venerable sovereigns discussing the Dao, public discussion areas, and relatively closed small spaces, provided that they were invited.
His true body didn't enter, but his mind. It was like an illusion, where they could exchange great DAOs and hide their identities.
Every person who entered had to pay 100000 great Dao crystals. This was not a small amount. Of course, for venerable sovereigns, it was not too difficult to reserve some.
Even if it was a first level venerable sovereign, if he really wanted to gather them, he could do so with some time.
A portion of these great Dao crystals were used to maintain the existence of the illusion. After all, an illusion that could conceal auras and auras required a large number of great Dao crystals to maintain its activation.