I "Ancient Times" there were three prisoners who were in dark caves in shackles only allowed to see those things in front of them.
exploring the surrounding
The prisoners are in caves. They are wearing shackles while only allowed to be facing one direction. They only can see the shadows and behind them is fire that they cannot see.
back into the caves
One of the prisoners were released from the caves. his time being out of the cave he still only saw shadows but as time passed by he started to see other things besides just shadows.
Still in the caves
The prisoner had been affected from what he had saw because he never saw light, he always saw darkness, Then he decides to go back to the cave for the others.
The prisoner goes back to the cave to set the others free because he wanted them to see the light, but they were afraid because they only saw the darkness of the shadows.
The prisoners said if he tried to set them free they would kill him. They thought he was being affected in a bad way since he couldn't see the shadows anymore and they didn't want the same thing to happen to them.