I think the books is all about the ways that we can lvie, under whatever circumstances.
Its about the power that we have to give life meaning! We and only we can paint it with the colours of beauty ad happiness.
All they had in their concentration camps, was their mind and they used it!
People who experience such horrors can tel you wat is the meaning of life.
Hold the hand of the one you love, enjoying the moment, sharing a conversation, sharing all that you have with ur next one!
We can laugh, bbut enjoy the food u have on ur plate, even when it not caviar or watever, enjoy the things you got and can enjoy, and most importantly share those experiences with people.
There so much meaning in this that after such an experience, you can probably go out in disneyland and still now, that you do not need all the colours and amazing things u got there to be happy. You can just do it without the envirnment, you can do it with ur mind!