In edgar allan poe the philosophy of composition how does poe say he creates contrast in the portrayal of the bird in the raven

In "The Philosophy of Composition," Edgar Allan Poe explains many of his literary strategies. One of the things he reveals is how he was able to create contrast in the portrayal of the bird in "The Raven." He explains that when the raven first appears at the chamber door, his appearance is almost comical. The protagonist is scared of the noise, but it turns out to be only a raven. However, the tone changes from comical to ominous as the bird begins to talk and only repeats the word "nevermore."

different strategies reach different people based on their ability to understand the material. (from personal experience) when writing an argumentative essay write explaining the subject as though your audience never heard of it before and it is just being introduced, then explain why other people hate it also, afterward you would explain why that would be wrong. i hope that : )

not concrete, existing in thought or as an idea but not having a physical or concrete existence