The conditions for Su Family Ancestor's enlightenment were naturally set by Jiang Tang, wasn't it just letting these old folks enter a phantom-capable Immortal Castle?
There, they advanced into the Immortal Realm ahead of time, where they could enhance their powers and spar with immortals, learning cultivation techniques and moves from these immortals.
Thus, their abilities were boosted, perhaps this is why the old fellow achieved enlightenment, allowing him to become a deity earlier than them.
Those old folks were anxious, eager to become the next deity.
So they suggested, they all applied to enter the Immortal Castle once more for divine tribulation.
Jiang Tang agreed with them and sent them into the Ice Crystal Palace.
Others who have not become deities were given the chance to enter the Ice Crystal Palace.
Su Family Ancestor also applied, any celebration and the like could wait.
He didn't want to miss out on this divine tribulation journey.
