Obon is the Japanese custom to honor the deceased spirits of one's ancestors. Obon usually is celebrated somewhere in July or August. It differs by region. Anyway, most Japanese make trips to visit the cemeteries and then there are big festivals or 'matsuri' afterwards.
In the spirit of Obon, we went to visit Mom and Dad this weekend, then had our own 'festival' at Chevy's. Margarita's and chips and salsa. All good.
In Japan, they float lanterns on the water to signify the return of the ancestral spirits to the world of the dead.