Auschwitz-Birkenau Concentration Camp

Entrance to Auschwitz. The sign says "Work will Free You".

 I walked where people marched to their death.  I walked out of gas chambers that people in the concentration camp never walked out of.  A man who survived Auschwitz said, "You survive by luck, health, age, and a strong psyche." 

I don't know, I cannot comprehend it.