O-Bon is a spiritual event held to pay respect and give gratitude to our ancestors, and to pray for all spirits. Why should we respect our ancestors? There is no complicated reason – all we require is respect and sense of gratitude for our ancestors, and we should realize how wonderful and precious our life is. If there were no parents, grandparents, great grandparents or ancestors, we would not be here. Also, we should realize that our nature and characteristics have come from the genes of our parents, grandparents, and great grandparents or ancestors. In other words, we should accept our genes as messages, and know that we are located at the end of the message.