Sole Cloud Flying Cave

Cui Heng was transmigrated to another world and the system told him that the new world he was in was a high-grade Xianxia world.
It was a world where Celestial Kings soared the sky and terrifying monsters ruled the lands. The strong would destroy a planet if their mood was bad and Cui Heng trembled in fear when he learned of how scary the new world was.
Thankfully, the system had granted him the protection that last for 300 years. As long as he remained in the safety zone, he would not receive any damage.
With his safety secured, he began his cultivation training for the next 300 years.
Throughout the years as he trained, some people entered his safety zone by mistake.
There was a peasant who was once a monk and a beggar. Despite that, he still had the dream of bringing peace to the land and saving the lives of millions.
There was a noble who was once called the once-in-a-million-year genius. Yet, luck wasn't at his side and his talent fell and was laughed at by others for years.
There was a princess whose only wish was to find her older brother. She could've become a celestial but decided to remain in the human realm to wait for her brother's return.
There was a weak lady who was plagued with illness from birth but had the goal of adventuring and helping the poor and weak.
...
Cui Heng befriended these people and even gave them a few pointers before they left.
300 years later, when the protection period had ended, he had finally mastered the Golden Core. Even then, he was still reluctant to go to the outside world.
But when he did, he realized that the world was merely a world of Wuxia.

Realizing This Is A Wuxia World After Cultivating For 300 Years

"Exalted Immortal, our Purple Sun Heaven Divine Palace keeps a treasure to communicate with that big shot from the Heaven Realm."

Zhuo Fan said respectfully, "As long as one offers enough contribution, one can activate this treasure and open a spatial rift at a specific time. They can then establish a connection with that big shot."

Now, he no longer dared to hide anything from Cui Heng. With that, he took out a disc.

The radius of this disc was only about three inches, and it was also very thin. It was no thicker than half a knuckle and was completely green, like an ancient bronze artifact.

The back of the disc was carved with complicated and exquisite patterns. There were clouds, the sun, divine dragons, and flying phoenixes. The overall design was exquisite.

On the back of the disc were 36 small diamond-shaped grooves. They were clearly used to place something.

Was this what Zhuo Fan meant by "sufficient contribution"?

White Lotus Lord of the Heavens, the Source of All Outer Dao