After the creatures in the passage had truly adapted to this world, they would use the Divine Court's Secret Realm as the coordinates to connect the passage to the Divine Court's Secret Realm truly.
What the Longevity Organization did was simple.
That was to use a large number of living beings in this world as a guide to speed up the fusion of the passageway and the Divine Court Secret Realm.
This way, he could connect the passageway to the Divine Court's Secret Realm in a short period of time.
At that time, the creatures in the passage would definitely be furious because things went out of plan.
However, the Longevity Organization did not care about that.
What they wanted was the records of the living beings in the passage or the "secret techniques of longevity" used by those living beings.
As for An Kai, his method of destroying the Longevity Organization was even simpler.