The line comes from The Lego Movie, the 2014 animated film built around Lego characters and a chosen one quest. Its prophecy setup leans on familiar fantasy formulas, and this moment strips that formula down to filler words instead of real details. Clips of the muttered line later circulated on soundboards and in edits because it works outside the film as shorthand for any vague worldbuilding. It remains popular for the same reason the joke landed originally: almost every story uses names, places and backstory to sound important before anything meaningful is revealed.