As one of the Eight Great Sacred Lands of the Central Continent, the Pure Yang Sacred Land had more than ten thousand years of history. Its foundation was extremely deep, and its internal space was almost not inferior to the Southern Land.
As for the Pure Yang Sacred Master, he was also the oldest Great Sage in the Spirit Central World. His strength was ranked third among the eight Sacred Masters and was only inferior to the Immortal Sacred Master and Peerless Sacred Master.
Interestingly, this Pure Yang Sacred Master also liked to research things just like Long Zhen.
However, what he researched was not "technology", but cultivation techniques.
Almost every so often, the Pure Yang Sacred Master would innovate and write new cultivation techniques for his descendants to use.
Therefore, not only did the Pure Yang Sacred Land have many cultivation techniques, but it also had countless branches.