The
rain retreat lasts for one and a half months, from
the 15th day of the 6th lunar month to the 30th day of the 7th lunar
month. The retreat is held in accordance with the instructions of the
Buddha in the Vinaya Sutra directing all monks to observe
certain restrictions and engage themselves in meditation and practices
for the period. Sojong or confessions are
offered by the sangha on two occasions during this retreat. On the evening
of the 30th, the last day of the retreat, selected monks give teachings
and expound the Dharma to the community.