On the 15th day of the 7th month in the Lunar calendar, ghosts are free to roam the earth. At this time, burning incense and paper money, and making offerings of different kinds of snacks, drinks, and cigarette will please the ghosts and bring good fortune. It’s a big deal in Hong Kong, and there are fun and interesting festivals. You’ll also notice lots of little fires on the sidewalks and the flying ashes of burnt money!