Halloween’s tapestry weaves pagan Samhain—Celtic bonfires and spirit offerings—with Christian Allhallowtide’s prayers for the dead. Medieval soul cakes, Reformation rebellions, and Irish famine exodus birthed modern revelry: pumpkins replace turnips, guising becomes trick-or-treat. A billion-dollar paradox, Halloween mocks death yet honors ancestors, its jack-o’-lanterns grinning through the thinning veil of time.