Avijjā: Ignorance
A darkness that keeps things hidden from the one standing inside it. A wall had to be dug through before this room came into view, and the elders had picked it for exactly that quality: no windows, no witnesses. Anyone who has reached for a light switch in a strange room knows how confidently the hand goes to the wrong wall.
Papañca: Mental proliferation
The mind's habit of spinning one thought outward into a crowded world. Each elder stands in his own chamber of pictures, and every creeping figure on those walls came out of his own hand and his own hours. Give a private worry a room to itself and it will cover every surface before morning.
Micchādiṭṭhi: Wrong view
A bent understanding that steers everything downstream of it. "Yahweh doesn't see us" is the door that lets the rest in; once a man is certain no eye is on him, the censer lifts easily. Saying the land has been forsaken then turns their own turning away into something done to them first.
Hirottappa: Shame and dread of wrongdoing
The inner check that holds steady when nobody is watching. Whatever restraint these seventy kept out in the daylight courts was borrowed from the eyes around them, so it stayed outside when they went in and shut the door. A guard is worth little if he only stands up when the inspector comes.
Kamma: Intentional action and its fruit
Deeds carry their result the way a seed carries the plant. Darkness hides these men from onlookers and does nothing at all to the burning itself; the smoke fills the lungs of whoever is in the room, whether or not the neighbors smell it. Their conclusion that no one sees skips the one standing closest to the deed, the one doing it.