What is the experience of a witch undergoing tribulation like?
The answer is chaos.
There is no sight, no hearing, no smell, no touch. In absolute darkness and silence, even one's own existence cannot be confirmed, making it easy to fall into doubts of nihilism.
Anna started to reconstruct her body according to her memory, first the heart and lungs, then the liver and kidneys.
However, due to the lack of sensory abilities, throughout the entire process of organ reconstruction, she had no way to know what the organs she condensed were like.
It's like walking in total darkness where you can't see, not even knowing if you're heading towards a cliff, forced to blindly follow the road in your memory.
If the organs are condensed incorrectly, initially there would be no symptoms, but as the reconstruction progresses, problems will gradually begin to surface.