Answer:
Nope it’s not a metaphor
Explanation:
Metaphors are used to compare something using “like“ or “as”
example: Im so hungry I can eat like a giant!
New = Used
Knew = not know
Sell = keep
Grate = boring
Sail = approach
Roll = unroll
Role = not to do
Knowing that the narrator is speaking directly to you as the reader and giving only his perception of what happened leads to questions of whether or not he is a reliable narrator and lends an air of mystery to the story. In the opening of the story he even says he does not expect to be believed and that his “senses reject their own evidence,” so the reader cannot be sure of what is true....
The symbol meaning means Hopeless.
"Life is a broken-winged bird" means 'life becomes hopeless. ' "That cannot fly" means 'life without dreams is as sad and tragic as a bird that can't fly.