Given time, some festivals travel a long strange road. Roman Saturnalia, an excuse for big parties and lots of eating and drinking, has become Christmas, and excuse for, well, pretty much the same. Samhain, on the other hand, the Celtic festival celebrating the night at which the boundaries between the real world Faerie become blurred, has gone through substantial changes.
First it became All Hallows Eve, a night on which good Christian souls huddled indoors, fearful of the demons and witches that traveled abroad. Then it became Halloween, an excuse for warm, spicy drinks and some strange games with apples but not a lot of excitement because everyone in Britain was waiting eagerly for Bonfire Night a mere five days away.
Meanwhile, across the Pacific, the Americans saw no particular reason to celebrate failed attempts to blow up the British Parliament, and they began to take Halloween to their hearts. This may come as a surprise to people back in Europe, but their old Celtic festival is the second biggest money-spinner in the American calendar, second only to Christmas.
Traditionally America's Halloween has been a festival for kids. It was a chance to dress up, make a spooky pumpkin lantern, decorate the house and get lots of candy bars by playing trick or treat. It was a very homely event (quite unlike the re-imported British version of trick or treat that seems to involve gangs of young thugs demanding money with menaces and who spray-paint your house if you don't pay up).
The apple pie version of American Halloween still exists. These days responsible parents escort their beautifully disguised little terrors around the streets because, well, you never know. This year some joker in Oakland stuffed some candy bars full of marijuana. It is a sad old world. But over the years kids who have enjoyed Halloween have grown up, and they have refused to give up their holiday.
These days Halloween is a holiday for grown ups too. It is a holiday on which everyone gets to dress up in silly costumes and do mad things that they would never do at any other time of the year. San Francisco, of course, takes this to extremes, with wild parties involving much leather, body piercing, gender bending and all of the other things that The City is famous for. Elsewhere things are a little more restrained, but it is still the one night of the year on which Californians of all ages, beliefs and political creeds (except the Fundamentalist Christians who still celebrate All Hallows Eve and spend the day frantically exorcising their neighbors) can let their hair down.
The strange thing is that this is remarkably reminiscent of the old British midwinter celebrations presided over by the Lord of Misrule. It is a time when social conventions and strictures are abandoned. Which just goes to show that religious festivals are there for a purpose. If they don't exist, someone will invent them.