Emphasis has been made on the fact that despite adverse conditions, some people were still able to find a meaning to their life (via imagination or hoping for a better future). Some felt bitter because those who outside do not appreciate their suffering, some felt disillusioned because all the dreams they had of a beautiful life (after release) did not turn out as expected. It implies that humans live to find a meaning to their life, and life just like sometimes a movie does not reveal its entire plot till the last scene.