It is a story parallel to what is happening in the Usher house.
The palace in the description represents Roderick Usher, whose hair used to be blond, as the yellow banners that wave in the air; through his eyes (the windows of the palace), a harmonious mind could be perceived, and wise words used to flow from his mouth, described as a door of pearl and ruby. However, gloom befalls on Roderick; his hair turns gray, his eyes are reddened by tears, his thoughts are discordant, and his mouth utters only the wild laughter of a madman.
Explanation: A writer should always include a works cited page because you don’t want to be called out on plagiarizing. If you have quotes or information from a website, book, article, or any source you used then you need to give credit to that person/people because you didn’t come up with the information yourself.
The answers are as follows
Does the shape of the dewdrop depend on the temperature of the surface?
Is the material of the surface responsible for the shape of the dewdrop?
Does the shape of the dewdrop depend on the moisture in the atmosphere?
The other two answers are purely based on opinion, and does not actually effect the shape of the dewdrop in any way.
He probably uses a metaphor because a simile uses the words like and as and a metaphor does not use the words like and as. Hope this helps!