The One Pillar Pagoda (Vietnamese:Chùa Một Cột, formally Diên Hựu tự , which litterally means “long lasting happiness and good luck”) is a historic Buddhist temple in Hanoi, the capital of Vietnam.
The unique pagoda is located in the western part of the city, near Ho Chi Minh’s Mausoleum, Ong Ich Khiem St., Ngoc Ha, Ba Dinh District, Hanoi.
According to legend, ageing Emperor Ly Thai To of the Ly dynasty, who had no children, used to go to pagodas to pray to Buddha for a son. One night, he dreamt that he was granted a private audience to the Bodhisattva Avalokiteshvara, who was seated on a great lotus flower in a square-shaped lotus pond on the western side of Thang Long Citadel, gave the King a baby boy. Months later, when the Queen gave birth to a male child, the Emperor ordered the construction of a pagoda supported by only one pillar to resemble the lotus seat of his dream in the honour of the Bodhisattva Avalokiteshvara. According to a theory, the pagoda was built in a style of a lotus emerging out of the water.