"Welcome, foolish mortals" is one of the best-known lines from Disney's Haunted Mansion, introduced by the Ghost Host narration at the attraction. The ride first opened at Disneyland in 1969, and the line became widely recognized by Disney fans through park visits, recordings, and online uploads. It still shows up in Halloween edits and spooky meme videos because it is instantly recognizable, short, and atmospheric without needing any extra context.