Definition & Meaning of "beyond one's wildest dreams"

What is the origin of the idiom "beyond one's wildest dreams" and when to use it?

The idiom "beyond one's wildest dreams" is used to suggest that the reality or outcome surpasses the most optimistic and imaginative expectations. The origin of this expression is not precisely documented, but it's commonly used in English to emphasize the extent of surprise or delight in a particular situation.