At night time of full-moon day of Kason, It is the season water in all ponds, lakes and creeks reduces to its lowest level. During the month of Kason the length of the day is longer and the night is shorter. The seasonal flower is Sagar and this festival is water pouring ceremony at the maha-Bodhi tree, the holy Banyan tree at the foot of which the Buddha attained Buddhahood or enlightenment.