Butterfly in the Sky comes from the opening of the Reading Rainbow theme song, the long-running American children's series that aired on PBS from 1983 to 2006 and was hosted by LeVar Burton. The lyric introduces a show built around encouraging children to read, and its gentle, soaring image became closely tied to the programme itself. As clips of the theme circulated online, the short phrase took on a second life as shorthand for nostalgia, innocence and wonder, which is why creators still reach for it when they want a warm, instantly recognisable lift.