The night has fallen and so have you. How is it that you've lost your sight? All that contention, they could have given you enough experience to continually move forward but now you're left dumbfounded as if you never had any knowledge. You built the walls too high now you can't see what's outside and beyond; you only see the walls close in as they start to crumble. What you've been trying to protect has also lost its value. The plague you've been trying to fend off has permeated through the walls when you weren't paying attention. So now you're blinded again, lost your capacity to see through the dark.