Edison experimented with thousands of materials to find the filament.
Lanling, in order to create Yin and Yang energies within his body, also experimented with hundreds or thousands of methods.
He has killed himself in meditation no less than a hundred times.
Moreover, the formulas written in the brain domain and the energy blueprints drawn probably exceed tens of thousands.
Even in the Meditative World, Lanling almost went insane.
These ten years in the Meditative World were not just torment to Lanling, they were like burning his life and wisdom tirelessly.
Lanling even doubted that if this continued long-term, even with his Golden Bloodline and golden body, he would exhaust his life and die.
It took ten full years for Lanling to write the scroll of "Yin Yang Jue" from scratch.
Finally, in theory, he completed the separation of Yin and Yang energies within his body.
At this moment, Lanling almost wanted to cry to the heavens.
