I’m pretty sure it’s a metaphor!
the poet refers to the 'wealth' of happiness and gaiety.
Answer:
1. The door is opened by him
2.The table has been set by us
3. A lot of money has been paid by her
4. A picture was drawn by me
5. Blue shoes are wore by them
6. You are not helped by them
7. The book is not opened by him
8. The letter is not written by you
9. Are you picked up by your mom?
10.Is the theif caught by the police officer?
When Gregor died, he was transformed into a big insect. From then on, the story continues. Gregor had not realized that he was dead. They were so dependent on him. His passing had changed the way they looked at life. They were able to get jobs and the same time learned to use money wisely. They were able to save some of Gregor's saving and from their father's failed business.