The Background

Keeping
aside all the variations, Ullambana has it's origin in Buddhism. This
festival is celebrated on the 15th day of the 7th lunar month in many
countries, infuenced any how with Buddhism as China,Japan,Malaysia etc. This
is believed that the 'Gates of the Hell' are opened and and the dead ones
pay visit to their loved ones. So, the offerings are offered to the spirits
of the dead and to the hungry ghosts for good fortune and luck.
Ullambana, a sanskrit word means rescuing those who are hanging upside
down. This is a key Mahayana Buddhist concept based on the story of
'Mahamaudgalayana saving his mother'.It is refered as 'seeking salvation for
the anguished soul in hell'. Ullambana Sutra is a discouse given by the
Buddha principally to the Mahamaudglayana on the practise of the filial
piety.
So, this festival mainly underlines the filial piety. It encourages us to
perform the good deeds to exel not only ourselves but also our departed
souls spiritually so that they can have a better rebirth to end their
sufferings.
The celebration

On
the 15th day of the 7th lunar month, Buddhists celebrate the day of the
Buddha's rejoicing and the Sangha's Pravarna. It is believed that the marits
and virtues derieved from making offerings to 'Triratna' or the Triple Gem
on this day is greater than on ordinary days many times.On this day,
Buddhists offer prayers both to their departed forefathers and to their
living parents and elders.The Buddha had instructed Mahamaudglayana to make
offerings of Pravarna food to the virtuous assembly of the Sangha on the
last day of the rain season retreat (15th day of 7th month in the lunar
calendar).Now, the exact same ritual is precticed among Buddhists.
In Chinese Ghost Festival (Chinese version of Ullambana) ritualistic
offering food is prepared and hell money is burned to please the visiting
ghosts and the spirits as well as deities and the ancestors.Miniature paper
boats and lanterns are buried and released on water which means 'giving
directions to the lost ghosts and spirits'.So, we can describe this festival
as a communion between the living and the dead, Earth and heaven, as well as
body and soul.
The Rainbow
This festival is celebrated in all the countries with the slight variations
but the main rituals remain almost the same. Besides offering the prayers to
the souls of deceased ancestors and the welfare of their parents' people
carry offerings as food, medicines and clothes for monks and the nuns in the
monestries.
Ullambana and Chinese Ghosts Festivals-both of the festivals togather-are
celebrated as Chung Yuan Putu or 'Mid Origin Passage to Universal
Salvation'. But Chinese Buddhists sometimes differentiate both the festivals
also.
This festival is known as Ching Ming Jie in Singapore, O- Bon in Japan and
Vu Lan in Vietnam.
This festival also shares some similarities with the predominantly Mexican
observance of El Dia de los Muertos.