it's an allegory
The phrase, finding a needle in a haystack refers to having to find something or someone in an impossible situation. The item can be any size. The area can be any size as well.
Merry as a haystack sleeper. Merry as a two-year-old.
getting your tooth pulled is like being injected with a needle.
The mosquito was as small as a tip a tip of a pencil.
prose allegory is to represent something in another manner
Usually, there is a haystack, and someone throws a needle in the haystack. The game is to try to be the first to find the needle. The needle may be anywhere in the stack and may be right on the surface of the stack, or in the very middle of the stack.
Finding a person who is lost in the woods is like looking for a needle in a haystack.The search for suspects was a needle in a haystack.The correct idiom is "looking for a needle in a haystack".
This task is as difficult as finding a needle in a haystack.
The phrase "like finding a needle in a haystack" is used to describe something extremely difficult or challenging. There are no verified records of someone actually finding a needle in a haystack, as it would be an incredibly rare and laborious task.
Suspense - 1949 Needle in a Haystack - 6.7 was released on: USA: 10 November 1953
Forensic Files - 2000 Needle in a Haystack was released on: USA: 4 September 2009
That was like looking for a needle in a haystack of needles!
It's NEEDLE in a haystack. See the related question.
a phrase that highlights similarity between things of different kinds — usually formed with "like" or "as" as in "It's like looking for a needle in a haystack," or "She is as quiet as a mouse."
The task of selecting a right and efficient water tank manufacturer among the crowd of tank manufacturers is like finding needle in a haystack.
Suspense - 1949 Needle in a Haystack 6-7 was released on: USA: 10 November 1953
Desire - 2006 A Needle in a Haystack 1-24 was released on: USA: 2 October 2006