Levi estimated that the previous initiation of a mirage by the Land of Darkness was a tribulation intended to send him back to his original universe, as his existence disrupted some kind of balance that the Creator of the Multidimensional Plane wished to maintain.
Unfortunately, he's stubbornly staying!
So, it means that he has to be careful going forward to avoid getting trapped in the mirage again, as one might not necessarily be able to return from there.
Joking aside, being a transcendent for two thousand years, who would want to return to the mundane modern civilization and be a wage slave? Here, he's the boss! Go over there, without supernatural abilities, he'd be mere fodder, living a short life without freedom.
Levi's mental fluctuations were naturally captured by the man.
He looked calm, then smirked:
"It seems you've seen a mirage too."
"Indeed."
The man didn't say much else, but continued:
