Comprehensive resource for understanding and mastering English idioms
The idiom "a needle in a haystack" refers to something that is very difficult to find, especially when surrounded by many similar things. It's like looking for a small needle in a large pile of haystacks.
The origin of the idiom "a needle in a haystack" dates back to the Middle Ages when farmers would stack large bales of hay in their fields. The needles from the straw used to tie the bales together would fall out and get lost in the stacks. To find them, farmers would have to search through the bales one by one, just like looking for a needle in a haystack. The phrase has been used in literature since at least the 17th century. For example, in John Dryden's poem "Absalom and Achitophel" (1685), he wrote, "A king that sits in a high place is like a nail in a piece of wood; but he that runs them through it is like a needle in a haystack." Over time, the idiom has become more generalized to refer to any situation where finding something is difficult.