Lin Fang nodded slightly, and suddenly realized in his heart.

He had already guessed it before.

Ore veins? What would be the ore veins that can attract monks?

It's basically the Yuanshi ore vein.

Yuanshi is a common currency in the world of immortal cultivation and a resource for cultivation, containing the essence of heaven and earth!

The mortal world has no energy of heaven and earth at all. Even if there is one, it is just a very thin thread, which can almost be ignored.

Yuanshi can be considered as the solid-state vital energy of heaven and earth.

In the mortal world, gold and silver are needed, which are transaction currency.

The same is true in the world of immortal cultivation, which requires currency trading, whether it is purchasing cultivation resources, eating and drinking, etc.

But without exception, all of them are using Yuanshi.

Moreover, Yuanshi is also divided into levels.

According to the records in the jade slip left by Nangong Yixuan to Lin Fang, Yuanshi is also divided into layers, four major grades, the lowest, middle and upper grades.

However, it also mentioned that cultivators in the fourth realm of martial arts, namely the four realms of Huangwu Xuan-level Earth Soul Tianchen, can only contact the middle-grade Yuan Stone at most.

In other words, they are not qualified to use and obtain higher grade Yuanshi.
Chapter completed!