The Metamorphosis

I have finished reading a book recently. The title is "The Metamorphosis" written by Franz Kafka. I tried to read it in English. it was a little difficult for me. I managed to follow the story, but did not understand descriptions in detail as if I was reading sentences lacking adjectives, adverbs and lots of prepositions. As I am lacking of sense of reading, I'd not have understood the story fully if I had read it even in Japanese.

The brief story is following.
As Gregor Samsa awoke from uneasy dreams one morning, he found himself in his bed transformed into a gigantic insect. He was a travelling salesman and had to go to work that morning. However he could not get up and go out from his room. His boss came to his house in order to take him to the office. The boss, his mother and sister were standing in front of a door of his room and opened the door. As they had seen his ugly transformation, the boss left the house immediately and his mother was shocked. However his father was not interested in him. As transformed Gregor had not worked since then, the family, especially his sister, had to take care of him. To make matters worse, nobody earned in the family, so they had to rent their room. It was too much of a burden for the sister and family to take care of the gigantic insect. One day three lodgers had found Gregor and they told the father that they would leave the house. So the family quarrelled over Gregor. They could no longer take care of him. The sister insisted that Gregor was no longer human. That night Gregor passed away. His death resulted in the greatest improvement of the family's situation. They had changed their house, their future seemed to be brilliant.

There is no explanations why Gregor transformed and What insect he was like. I can guess the insect could be a cockroach which is hated by many people. I think the author wanted to describe an ugly insect as a metaphor for a person who had depression, became mentally disabled or needed special care. Sad to say, an insect is no longer human, it does not have any contact point with society. The last hope is only his family. If the insect were not expected to recover in spite of his family's devoted care, the family could be exhausted physically and mentally. Finally they might abandon the insect. This is a very ugly aspect of humanity, which the author wanted to express in the story. One more thing I noticed is that Gregor and his father was somehow apart in the entire story. If Gregor had got along with his father, he would not have died or transformed.