The Hall of Prayer for Longevity: It is a small and exquisite palace-style building built to pray for the longevity of the seventh Dalai Lama, Gelai Gyatso, who lived in Kumbum Monastery in 1717. After the completion, an unusual sandalwood tree grew at the place where the fire altar was opened and the flowers were sprinkled during the ceremony. In mid-summer, the flowers were luxuriant and the fragrance was fragrant.