The phrase comes from the Spanish rendering of 'let there be light,' a line with a long life in everyday speech as a way to mark creation or sudden clarity. This clip is tied to commentator Carlos Cabrera, who has discussed how he came up with using the phrase as a signature expression. Shared as a short voice sound online, it spread because the wording is instantly understood by Spanish speakers and easy to drop into edits. It remains used for reveals, light switches, and moments presented as long awaited solutions.