Frankl identifies three psychological reactions experienced by all inmates to one degree or another:
- shock during the initial admission phase to the camp,
- apathy after becoming accustomed to camp existence, in which the inmate values only that which helps himself and his friends survive, and
- reactions of depersonalization, moral deformity, bitterness, and disillusionment if he survives and is liberated.[6]
Frankl concludes that the meaning of life is found in every moment of living; life never ceases to have meaning, even in suffering and death. In a group therapy session during a mass fast inflicted on the camp's inmates trying to protect an anonymous fellow inmate from fatal retribution by authorities, Frankl offered the thought that for everyone in a dire condition there is someone looking down, a friend, family member, or even God, who would expect not to be disappointed. Frankl concludes from his experience that a prisoner's psychological reactions are not solely the result of the conditions of his life, but also from the freedom of choice he always has even in severe suffering. The inner hold a prisoner has on his spiritual self relies on having a hope in the future, and that once a prisoner loses that hope, he is doomed.
Frankl also concludes that there are only two races of men, decent men and indecent. No society is free of either of them, and thus there were "decent" Nazi guards and "indecent" prisoners, most notably the kapo who would torture and abuse their fellow prisoners for personal gain.
His concluding passage in Part One describes the psychological reaction of the inmates to their liberation, which he separates into three stages. The first is depersonalization—a period of readjustment in which a prisoner gradually returns to the world. Initially, the liberated prisoners are so numb that they are unable to understand what freedom means or to emotionally respond to it. Part of them believes that it is an illusion or a dream that will be taken away from them. In their first foray outside their former prison, the prisoners realized that they could not comprehend pleasure. Flowers and the reality of the freedom they had dreamed about for years were all surreal, unable to be grasped in their depersonalization.
The body is the first element to break out of this stage, responding by big appetites of eating and wanting more sleeping. Only after the partial replenishing of the body is the mind finally able to respond, as "feeling suddenly broke through the strange fetters which had restrained it" (p. 111).
This begins the second stage, in which there is a danger of deformation. As the intense pressure on the mind is released, mental health can be endangered. Frankl uses the analogy of a diver suddenly released from his pressure chamber. He recounts the story of a friend who became immediately obsessed with dispensing the same violence in judgment of his abusers that they had inflicted on him.
Upon returning home, the prisoners had to struggle with two fundamental experiences that could damage their mental health: bitterness and disillusionment. The last stage is bitterness at the lack of responsiveness of the world outside—a "superficiality and lack of feeling... so disgusting that one finally felt like creeping into a hole and neither hearing nor seeing human beings any more" (p. 113). Worse was disillusionment, the discovery that suffering does not end, that the longed-for happiness will not come. This was the experience of those who—like Frankl—returned home to discover that no one awaited them. The hope that had sustained them throughout their time in the concentration camp was now gone. Frankl cites this experience as the most difficult to overcome.
As time passed, however, the prisoner's experience in a concentration camp became nothing but a remembered nightmare. What is more, he comes to believe that he has nothing left to fear "except his God" (p. 115).
