(Sanskrit, varṣya). The annual rain-retreat undertaken by Buddhist monks for a three-month period during the monsoon season, which normally lasts from June to October. The custom of remaining in one place was instituted by the Buddha, and arose due partly to the practical difficulties of travel in that season, but also to ethical concerns about causing injury to the tiny creatures that become abundant after the rains. Monks returned year after year to the same retreats, like the Jetavana at Śrāvastī, leading to the foundation of semi-permanent residences and ultimately the establishment of monasteries (vihāra).




