Get your head out of the clouds

Origin

The phrase conjures a clear visual: a person gazing skyward, eyes lost in the vast, boundless expanse of the clouds, completely oblivious to the earthly realities unfolding around them. While the notion of being 'in the clouds' as a state of dreamy abstraction dates back to at least the 17th century, this specific command became a popular, sharp-edged idiom in the 19th century. It was a firm, no-nonsense directive for those lost in impractical fantasies to snap back to the tangible world, to ground their soaring thoughts, and to focus on the immediate, practical demands of life, much like a pilot told to descend from the heavens and land.