O Bon days

Obon (お盆, Obon) or just Bon (盆, Bon) is a Japanese Buddhist custom to honor the departed (deceased) spirits of one's ancestors. This Buddhist custom has evolved into a family reunion holiday during which people return to ancestral family places and visit and clean their ancestors' graves, and when the spirits of ancestors are supposed to revisit the household altars. Also called the Feast of Lanterns, it has been celebrated in Japan for more than 500 years and traditionally includes a dance, known as Bon-Odori.

The festival of Obon lasts for three days; however its starting date varies within different regions of Japan. When the lunar calendar was changed to the Gregorian calendar at the beginning of the Meiji era, the localities in Japan reacted differently and this resulted in three different times of Obon. "Shichigatsu Bon" (Bon in July) is based on the solar calendar and is celebrated around 15 July in areas such as Tokyo, Yokohama and the Tohoku region. "Hachigatsu Bon" (Bon in August) is based on the solar calendar, is celebrated around the 15th of August and is the most commonly celebrated time. "Kyu Bon" (Old Bon) is celebrated on the 15th day of the seventh month of the lunar calendar, and so differs each year. "Kyu Bon" is celebrated in areas like the northern part of the Kantō region, Chūgoku, Shikoku, and the Southwestern islands. These three days are not listed as public holidays but it is customary that people are given leave.

Obon is a shortened form of the legendary Urabonne/Urabanna (Japanese: 于蘭盆會 or 盂蘭盆會, urabon'e). It is Sanskrit for "hanging upside down" and implies great suffering(Sanskrit:Ullambana). The Japanese believe they should ameliorate the suffering of the "Urabanna".

Bon Odori originates from the story of Mokuren, a disciple of the Buddha, who used his supernatural powers to look upon his deceased mother. He discovered she had fallen into the Realm of Hungry Ghosts and was suffering. Greatly disturbed, he went to the Buddha and asked how he could release his mother from this realm. Buddha instructed him to make offerings to the many Buddhist monks who had just completed their summer retreat, on the fifteenth day of the seventh month. The disciple did this and, thus, saw his mother's release. He also began to see the true nature of her past unselfishness and the many sacrifices that she had made for him. The disciple, happy because of his mother's release and grateful for his mother's kindness, danced with joy. From this dance of joy comes Bon Odori or "Bon Dance", a time in which ancestors and their sacrifices are remembered and appreciated. See also: Ullambana Sutra.
As Obon occurs in the heat of the summer, participants traditionally wear yukata, or light cotton kimonos. Many Obon celebrations include a huge carnival with rides, games, and summer festival food like watermelon.

The festival ends with Toro Nagashi , or the floating of lanterns. Paper lanterns are illuminated and then floated down rivers symbolically signaling the ancestral spirits' return to the world of the dead. This ceremony usually culminates in a fireworks display.