begins with a traveling salesman, Gregor Samsa, waking to find himself transformed (metamorphosed) into a large, monstrous insect-like creature. The cause of Samsa's transformation is never revealed, and Kafka never did give an explanation. The rest of Kafka's novella deals with Gregor's attempts to adjust to his new condition as he deals with being burdensome to his parents and sister, who are repulsed by the horrible, verminous creature Gregor has become. One day, Gregor Samsa, a traveling salesman, wakes up to find himself transformed into a "ungeheures Ungeziefer", literally "monstrous vermin", often interpreted as a giant bug or insect. He believes it is a dream, and reflects on how dreary life as a traveling salesman is. As he looks at the wall clock, he realizes he has overslept, and missed his train for work. He ponders on the consequences of this delay.