These are all connected somehow.
I am still working it out, but after learning more about Lichtenberg figures being known as electrical trees it clicked for me.
Stiles dreams of the Nemeton. The Nemeton reaches out and grabs him. He awakes to Lydia and eventually wakes up and walks through a door that leads to the Nemeton.
Stiles while in a sleepwalking trance ties red string to a pair of scissors and connects each red string to an unsolved case before plunging it in the middle of the bed. I had mentioned in a previous post that I thought this was representing the Nemeton because the way it was set up it looks like a tree trunk with roots coming out.
Then we have the frame drawing Lydia did of the Nemeton roots with a note For Lydia on it. The point was made to show it and make a point of it so its significant.
Then we have the Lichtenberg figures aka electric trees. Morrell made a point of saying that it was “significant and strange” add to that Melissa Ponzio’s tweet about something big being hidden in plain sight and I think this is what they meant.
I always found it odd that Stiles dream was so significantly pointing to the Nemeton and that it has popped up repeatedly in his story. Again I am not sure the meaning but I feel that if we can figure it out it will reveal a big clue about what is really going on.