The idea here is mainly Death, the agony in every one's life is accompanied by sudden moments of mockery even regarding the sources of pain in other characters' lives as well as the main character's life, who finally notices that each other character is not an extra but a main character in his own mind, or world.
the idea behind the events were about to express the triviality that lurks in the act of a man trying to portray himself while he is portraying himself, which results in a man sitting painting in front of a tableau, inside the tableau a man is sitting painting in front of a tableau ...etc.
As has always been, the idea of death, when it rules, makes every thing looks pale and useless>> as it is.
No euphemism is cared for, and no simplification for the mundane is employed.
What makes every thing look pale and useless?
Death