The line comes from LEGO Ninjago: Masters of Spinjitzu, the animated series that premiered in 2011, where Sensei Wu narrates the creation myth of the Ninjago world. His telling explains how the First Spinjitzu Master created the land using the four Golden Weapons. Clips of the opening narration later spread on YouTube, TikTok and soundboards as a reusable intro, often placed before unrelated stories to make them sound legendary. Its continued use is driven by nostalgia for the early seasons and the line's instantly recognisable wording.