The Heaven and Earth Furnace was not something Luo Chen had dreamed up on a whim.
It was a hypothesis Wang Yuan had proposed in the book Divine Adamantine Battle Qi after reaching a high realm.
When Wang Yuan had looked back upon the road he had traveled, he discovered that every major realm he had passed through still contained flaws. Thus, he devised all manner of perfected hypotheses for each realm.
For example, the Furnace Realm of the Body Refinement Third Realm!
Back then, in pursuit of greater lifespan, Wang Yuan had painstakingly broken through without any path ahead to draw upon.
Afterward, however, he discovered that his Furnace Realm had quite a few shortcomings.
Thus, Wang Yuan conceived of a more perfected method of breakthrough, leaving it for future disciples of exceptional talent.
Yet he had never imagined that Luo Chen would be the one testing his idea now.
This perfected breakthrough method required three extreme conditions!
They were the willpower to endure all pain, an incomparably resilient Great Diamond Physique, and an oceanic amount of qi and blood.
With powerful willpower, one suppressed the Pill Force converted from vast qi and blood, then embraced the pill into aura. After erupting in an instant, it formed the "Heaven and Earth Furnace." Throughout this process, the Great Diamond Physique was needed to withstand that instantaneous eruption.
And Luo Chen did indeed meet all three conditions.
One could even say that his physique surpassed the Great Diamond Physique. It was the genuine fleshly body of a Tier 5 Desolate Beast.
It was enough to endure the instant eruption of all the qi and blood within his body.
"This can count as a form of cultivating the power inside the physical body too!"
During his idle hours, Luo Chen thought this