In the heat of midsummer, throughout Japan, a mysterious, otherworldly group descends upon these isles in hordes. Nope, it isn’t tourists flocking to climb Mt. Fuji – it’s the spirits of the dead. Obon may be Japan’s festival of the dead, but it’s far from being all doom and gloom. Here are the top 5 things you need to know to get your head around Obon…