Halloween and Obon

It doesn't suit this season, I'll talk about Halloween today. Halloween, you know, is American feast. On the day, children parade and visit houses with make up as some ghost or witch, and they say "trick or treat." Originally, it came from Celt. The day was the last day of year and ancestral ghost visit their descendant on that day. Also witch, spirit or fairy comes out. It is said that "Fairy Ride" run around on the day. If people went out, they were caught by it and will never return. So people don't go out. Instead, to greet their ancestor or to wish fairies don't mischief, they put a cup of milk and a little food beside windows. On the next day, if it disappeared, it means their ancestor has came back safely.
Celt have samhain after Halloween as start of years. And between these days there are no border earth and the other side. So ghost came out to visit home, and others which harm people or domestic animals came out too. It looks like "OBON", the festival in Japan. It is on from 13rd from 15th, July. Japanese greet their ancestral ghost on the day. On the day, we display Japanese lantern to see ancestor there is the house which they should return and see them off with light of Japanese lantern as same as the start. It is said that people who stick to the road could hear the sound that the gate of underworld on the day.