From The Golems of Gotham, by Thane Rosenbaum:
Despair, if nothing else, is a private matter. The mind isn't required to share such information. That's because the soul is the master of its own short-circuitry, the system shutdown, the fading pulse that monitors the brokenness of both spirit and heart. When a state of mind sinks to a point where the life itself--the day-to-day engagements, the nightly slumber and silences--becomes unbearable, who are we to second-guess or armchair analyze? There was no way to properly insert oneself inside the minds of the Levins and follow the logic of [Holocaust]survivors who would one day choose a synagogue as the setting to turn off their own life-support systems.