Based on a recommendation, I picked up "Man's Search for Meaning" by Viktor Frankl. Viktor Frankl was an Austrian psychiatrist who was imprisoned by the Nazis during WWII.
Not only is the book a detailed description of what it was like living in the concentration camps. The extremely cruel and evil conditions that the Nazis had created. The book also details how Frankl found the courage and will to keep himself going during such times. How he persevered. How he survived, emotionally and psychologically, by trying to find meaning in the suffering.
There's also a short description of Frankl's work related to logo therapy. As well as Frankl's universal message and warning for mankind.
I found this to be one of the most remarkable written materials that I have ever experienced. I went through such a wide range of emotions. For almost 3/4 of the text, you keep asking yourself. How could this ever happen? How can man be so cruel. But Frankl also leaves us with some really powerful advise. It's just that neither Frankl, nor anyone else should have ever suffered this much.
Some quotes from Victor Frankl:
"Is this to say that suffering is indispensable to the discovery of meaning? In no way. I only insist meaning is available in spite of--nay, even through suffering, provided . . . that the suffering is unavoidable. If it is avoidable, the meaningful thing to do is to remove its cause, for unnecessary suffering is masochistic rather than heroic. If, on the other hand, one cannot change a situation that causes his suffering, he can still choose his attitude. Long had not . . . chosen to break his neck, but he did decide not to let himself be broken by what had happened to him."
“If there is a meaning in life at all, then there must be a meaning in suffering. Suffering is an ineradicable part of life, even as fate and death. Without suffering and death, human life cannot be complete.”
“Those who have a 'why' to live, can bear with almost any 'how'.”
“So, let us be alert in a twofold sense: Since Auschwitz we know what man is capable of. And since Hiroshima we know what is at stake.”