Saga Dawa Festival on the 15^th of the fourth month of Tibetan calendar is a unique festival of Tibet.

Saga Dawa means the Disu month in the Tibetan language; Disu is one of the 28 constellations of astrology in Tibetan calendar. Because the Disu appears in the fourth month of Tibetan calendar, this month is called as the Disu month, i.e. Saga Dawa.

According to the legend, it was all on the 15^th of the fourth month when the Lord Buddha Sakyamuni were born, achieved enlightenment and passed away, so various activities are held to commemorate Sakyamuni in this month of every year. All the activities on the Festival constitute the large-scale activity of Zhuanjing (circumambulation).