Zheng Yichen had seen the full form of the Devouring Sky Pillar, which was a massive entity with a diameter over two kilometers.
However, two kilometers is small compared to an entire planet. The World Tree's diameter completely surpassed the Devouring Sky Pillar. What was even more enormous were the sprawling roots of the Sky Pillar.
The diameter of this Devouring Sky Pillar had not yet exceeded one kilometer, it probably was in an unexpanded state. The attacks from the Dusk mercenaries and the resistance of local forces impacted its expansion.
Resistance is just resistance. If they can't sever the Devouring Sky Pillar, or force the Devouring Faction to retreat voluntarily, this thing will ultimately grow to its limit, and the environment will eventually be completely drained into an energy vacuum.
In the area where Zheng Yichen was located, some light columns had already risen. These light columns could suppress the environment and actively gather energy from it.