It has nothing to do with religion. My daughters friend did it and held onto a specific scripture through the ordeal.
You have to be strong mentally and emotionally to endure. You have to deal with your bs. You can’t avoid it, like we do common do, turning to our phones, gadgets, TV, alcohol, smoking et al. She said it forced her to really hear the still small voice referred to in the bible.
The world would be a better place if folks focused on their own bs instead of everybody else’s.
You can’t get there reading for five minutes.
It would not be my choice, sitting in darkness, but don’t knock something because you don’t understand it.