Chapter 3 Quote 2 Page 27
This quote takes suffering to a spiritual level because you are dealing with the "soul" of a man, not just his physical body, but his mind, will, and emotions. They had been stripped of their humanity and they were treated worse than animals. They were stripped of clothing, which revealed their nakedness, which is shameful and produces mental anguish/ breakdown. I believe the SS did this so that they would not have the cognitive ability to resist. If the prisoners wouldn't resist, then they would be easier to manage and less of threat to escape or revolt.