I also re-read Man's Search for Meaning by Viktor E. Frankl. Such a powerful book. Mr. Frankl Man's Search for Meaning to look at how the prisoners dealt with their imprisonment.
Near the very beginning of the book, the author wrote:
"It is easy for the outsider to get the wrong conception of camp life, a conception mingled with sentiment and pity. Little does he know of the hard fight for existence which raged among the prisoners. This was an unrelenting struggle for daily bread and for life itself, for one's own sake or for that of a good friend."
"We who have come back, by the aid of many lucky chances or miracles-whatever one may choose to call them-we know: the best of us did not return."
The book is full of stories and examples of how the men survived, or didn't, as the case may be. And the author offers what he believed to be not necessarily how survival was possible, but how to find meaning in one's survival or in one's death. It is a deeply moving book.