The year is divided into two periods of wandering, two of meditation and one of repose corresponding to the old Vassa.
During the remaining three months, known as Vassa or rainy season, residence in a monastery was obligatory.
So, again, on another occasion he allowed a man to keep Vassa in a caravan, and on a third occasion in a covered boat or ship.
Thereupon the Buddha prescribed that the monks were to keep ‘Vassa,’ and refrain from peregrination during the rains.
We now pass on to a description of the observances usual during the period of Vassa (see pp. 82-84).