After that.
Chen Xun left the Boundless Great World. He did not much like that place.
Within the void.
He sat cross-legged atop a massive floating boulder, his eyes vacant and unfocused, drifting toward the Taiyi Great World according to his memories.
Along the way, the vast void slowly eroded toward him.
Suddenly!
Chen Xun's entire body jolted. Divine light flickered in his eyes as he came back to himself...
With a light sweep of his sleeve, the void instantly surged like a storm-tossed sea, rising and falling like waves with terrifying force. That was the aura of the Profound Yellow Great World.
"So this is the void of heaven and earth—no origin, no matter, not even will. Good stuff."
Chen Xun drew a light breath. Before possessing the Profound Yellow Great World, he had never experienced such a tangible sensation.
The void was vast and boundless. It could erode cultivators' flesh, sever divine sense, and erase all things between heaven and earth from existence, yet it could also give birth to all things. When a Great World was in its prime, it constantly pushed back against the vast void.
It could give birth to suns, moons, and stars, and send down Starfall Continents to merge into the Three Thousand Great Worlds...
The void of heaven and earth seemed to be the foundation of all matter. Nothing could come from nothing.
He had once relied upon the Heaven and Earth Five Elements. Whether fighting or otherwise, he could draw endless support from them, making him exceptionally enduring. If it truly came down to attrition, no immortal could outlast him.
Yet the Three Thousand Great Worlds also had too many places that severed off the Heaven and Earth Five Elements. The inner Great Worlds of those Peak Immortals could accomplish that.