The pain came from his dantian beginning to expand.
As his dantian expanded, Luo Zheng's World Within began to expand as well.
Of course, the scale of their expansion was as different as heaven and earth...
His dantian expanded by only half a finger's width, yet his World Within had already grown by over a thousand li.
On his next breath, his dantian began to contract again, but his World Within did not contract with it. It merely stopped expanding.
On the breath after that, his dantian continued to expand, and his World Within grew by another thousand li...
"Huff, huff, huff..."
Luo Zheng's body seemed to have entered a subtle state.
With every breath, his World Within grew, expanding wildly a thousand li at a time!
Nuwa, who was guarding Luo Zheng outside, also noticed this wondrous state. She formed another divided soul and sent it into his World Within, and surprise immediately shone in her eyes, clear as water.
Previously, the continental plates in Luo Zheng's World Within had occupied nearly seventy percent of its space.
Now, however, all the continental plates floated in the sky, accounting for less than ten percent of the World Within.
The Place of Origin was expanding so quickly, and its expansion had yet to stop...
Whenever Luo Zheng's world expanded, some of the "flesh and blood matter" at the bottom of his World Within disappeared, turning into blood-red meridians that stretched toward the edges of the world.
The Primal Celestial Venerable and Du Zhen already understood: this "flesh and blood matter" was the foundation of the World Within's expansion.
"Every expansion of over a thousand li consumes roughly a hundred masses of flesh and blood..." the Primal Celestial Venerable said.
"To be precise, it's a hundred and three masses," Luo Zheng said.