When the arrow of light appeared, an arm was destroyed, and then an entire enormous entity was exterminated. Those things caused the light of the Traitorous Sutra of the Rebel Dao to grow unstable. It was being interfered with, including by the powerful Door of Immortality. As a result, the power of expulsion coming from the pillar of light temporarily ceased.
Meng Hao used that moment to finally reach his hand out and sink it into the pillar of light that was the Traitorous Sutra of the Rebel Dao. Almost as soon as his hand entered the light, Paragon Sea Dream's convergence beam grew a bit stronger.
The intensity was something that no observer would be able to detect, but Meng Hao could feel it, and it caused his eyes to flicker, although he didn't say anything out loud.