Lu Yin looked toward the entrance to the Heavenly Vault. He would never ask Elder Chan to cripple his own cultivation. Elder Chan was neither one of the Lu Family Remnants nor merely trying to stop Bai Wangyuan and the others from undergoing Tribulation Crossing. He genuinely wanted to undergo it, and he had come along of his own accord.
Ever since the sky of the Sixth Continent had covered the Fifth Continent, preventing anyone from reaching the Progenitor realm there, not even opening the Upper Three Gates had changed things. The Fifth Continent's Semi-Progenitors might have been confident they could break through to the Progenitor realm, but Lingzhi Mebis, the first to try, had died. Elder Chan was the second to make the attempt.
Elder Chan's first wave of tribulation was—Heaven's Suppression.
The star energy across the Heavenly Vault, both inside and outside, as well as throughout the Upper Realm, gathered from every direction into a sky that pressed down on Elder Chan. At the same time, the star energy within his body was constantly being siphoned away. Many Semi-Progenitors couldn't get past this stage.
Back then, Lu Yin had relied on the power in his heart to stop the star energy from being siphoned away.
The Progenitor realm was the final step in cultivation. To reach it, one had to create a system of power from scratch. It didn't matter whether the system was strong or weak; only those who created their own system could become Progenitors.
The power in Lu Yin's heart could ignore the Inner Worlds of Semi-Progenitors. That was a system he had created himself. Elder Chan now had to do the same: find a way to stop the star energy within him from being siphoned away, or he would struggle to survive Heaven's Suppression.