Well, you know, I don't think anyone who writes a television series has a master plan from the beginning, and knows all the character traits, and everything that's going to happen.
You will never stub your toe standing still. The faster you go, the more chance there is of stubbing your toe, but the more chance you have of getting somewhere.
The reflection of the flame in the glass seems to be touching the hand. And you feel the helpless fear of these dismembered parts. This sort of thing can hardly be visualized at the script stage.