Not only did cultivators need sufficient foundation and resources, but they also needed corresponding cultivation techniques.
If one of them was missing, it would be extremely difficult to break through. It was nearly impossible to succeed.
Just the accumulation of Dharmic power stumped most people.
Because it was an impossibly difficult task to enter the Golden Core Realm, some people tried to solidify their Dharmic power in advance and increase the quality of their Dharmic power before officially breaking through to the Golden Core realm.
This was how the False Core realm was created and many related medicinal pills were developed.
The Yellow Dragon Cloud Pill was one of them.
With the foundation of the False Core, if a cultivator tried to break through to the Golden Core realm, the success rate would be much much higher than before.