Although it had been less than a week since he entered the Forsaken Land of the Gods, Klein had long gotten a good understanding of the place through Little Sun. He knew that normal humans, even saints, had to use fire to create light in the darkness. Otherwise, it was very easy for them to encounter dangerous monsters lurking in the depths of the darkness, or be secretly devoured, disappearing without a trace, never to be found again.
And at that moment, the elderly clergyman wasn't carrying any animal hide lanterns. Instead, he passed through the fog in the darkness and slowly entered the cathedral that was illuminated by the dim yellow light.
If it wasn't for his deep and calm eyes that didn't show any signs of madness, Klein's first reaction would've been that he had encountered a special monster.