Pavarana is a Buddhist holy day celebrated on the full moon

Full moon

Full moon lunar phase that occurs when the Moon is on the opposite side of the Earth from the Sun. More precisely, a full moon occurs when the geocentric apparent longitudes of the Sun and Moon differ by 180 degrees; the Moon is then in opposition with the Sun.Lunar eclipses can only occur at...

 of the eleventh lunar month

Lunar month

In lunar calendars, a lunar month is the time between two identical syzygies . There are many variations. In Middle-Eastern and European traditions, the month starts when the young crescent moon becomes first visible at evening after conjunction with the Sun one or two days before that evening...

. It marks the end of the month of Vassa

Vassa

Vassa , also called Rains Retreat, or Buddhist Lent, is the three-month annual retreat observed by Theravada practitioners...

, sometimes called "Buddhist Lent." This day marks the end of the rainy season in some Asian countries like Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

, where Theravada Buddhism is practiced. On this day, each monk (Pali

Páli

- External links :* *...

: bhikkhu

Bhikkhu

A Bhikkhu or Bhikṣu is an ordained male Buddhist monastic. A female monastic is called a Bhikkhuni Nepali: ). The life of Bhikkhus and Bhikkhunis is governed by a set of rules called the patimokkha within the vinaya's framework of monastic discipline...

) must come before the community of monks (Sangha

Sangha

Sangha is a word in Pali or Sanskrit that can be translated roughly as "association" or "assembly," "company" or "community" with common goal, vision or purpose...

) and atone for an offense he may have committed during the Vassa.

Most Mahayana

Mahayana

Mahāyāna is one of the two main existing branches of Buddhism and a term for classification of Buddhist philosophies and practice...

 Buddhists do not observe Vassa, though many Son/Thien monks in Korea and Vietnam do observe an equivalent retreat of three months of intensive practice in one location.

Origins

In India, where Buddhism began, there is a three-month-long rainy season. According to the Vinaya

Vinaya

The Vinaya is the regulatory framework for the Buddhist monastic community, or sangha, based in the canonical texts called Vinaya Pitaka. The teachings of the Buddha, or Buddhadharma can be divided into two broad categories: 'Dharma' or doctrine, and 'Vinaya', or discipline...

 (Mahavagga, Fourth Khandhaka, section I), in the time of the Buddha, once during this rainy season, a group of normally wandering monks sought shelter by co-habitating in a residence. In order to minimize potential inter-personal strife while co-habitating, the monks agreed to remain silent for the entire three months and agreed upon a non-verbal means for sharing alms.

After this rains retreat, when the Buddha learned of the monks' silence, he described such a measure as "foolish." Instead, the Buddha instituted the Pavarana Ceremony as a means for dealing with potential conflict and breaches of disciplinary rules (Patimokkha

Patimokkha

In Buddhism, the Patimokkha is the basic Theravada code of monastic discipline, consisting of 227 rules for fully ordained monks and 311 for nuns . It is contained in the Suttavibhanga, a division of the Vinaya Pitaka.- Parajika :...

) during the vassa season. The Buddha said:

'I prescribe, O Bhikkhus, that the Bhikkhus, when they have finished their Vassa residence, hold Pavâranâ with each other in these three ways: by what [offence] has been seen, or by what has been heard, or by what is suspected. Hence it will result that you live in accord with each other, that you atone for the offences (you have committed), and that you keep the rules of discipline before your eyes.

'And you ought, O Bhikkhus, to hold Pavâranâ in this way:

'Let a learned, competent Bhikkhu proclaim the following ñatti [motion] before the Samgha: "Let the Samgha, reverend Sirs, hear me. To-day is the Pavâranâ day. If the Samgha is ready, let the Samgha hold Pavâranâ."

'Then let the senior Bhikkhu adjust his upper robe so as to cover one shoulder, sit down squatting, raise his joined hands, and say: "I pronounce my Pavâranâ, friends, before the Samgha, by what has been seen, or by what has been heard, or by what is suspected; may you speak to me, Sirs, out of compassion towards me; if I see (an offence), I will atone for it. And for the second time, &c. And for the third time I pronounce my Pavâranâ (&c., down to) if I see (an offence), I will atone for it."

'Then let (each) younger Bhikkhu adjust his upper robe . . . . (&c.)'