Stevie Wonders sings that “Superstition Ain’t the Way” but don’t tell that to millions of Halloween celebrants in California. If you’ve carved a pumpkin and lit it, you have observed the tradition of guiding lost spirits, which originated with Irish settlers in the U.S. They introduced a homeland fable of a drunken farmer, Stingy Jack, who tricked the Devil. Rejected from both heaven and hell, the Devil tossed him an ember from hell, which Jack used to create his own turnip-lantern to find his way through darkness. Among the superstitions people observe regularly: