Neak Pean, also known as the Nirvana Palace, was built in the 12th century. There is an island in the middle of the big pool. There is only a small temple of stone pagoda built in imitation of Mount Xumi on the island. On the stone pagoda, two entangled giant snake kings (Naga) are carved. On the east side of the island, there is a statue of white horse. Neak Pean means "a coiled serpent". Dragon Pan consists of five square pools, the largest pool in the center (known as the Holy Pool), symbolizing the ancient Himalayan mythology of Anavatapta, connected by a small pool on each side, while the water in the large pool is individually through four statues (north - water), horse (west - wind), lion (south - fire), man (east - earth, originally cowhead), then people. They planted grass at the bottom of the main pond. During the rainy season, the water of the pond was full. The herbs were naturally decomposed in the water and became a medicine pond. The medicine water flowed from the big pond into the flat groove of the penis in the small chamber, and then out of the outlets. There was a lotus pedestal under it. The patient knelt here to treat the disease with herbal water. As the four small pools are said to have different curative effects, the patients are identified and will follow the instructions to soak in liquid medicine. The covered roof above the outlet of the small pool is also carved with images of patient treatment and massage. Zhou Daguan in "Zhenla Fengdu Ji" called "Longpan" as "Beichi" - "Beichi in the north of the city, five miles, there is a Golden Square Pagoda, stone houses, Golden Lion, Golden Buddha, bronze statue, copper bull, bronze horse belong to. " Disaster humbles mankind, disaster makes mankind expect salvation, and salvation leads people to believe. Longpan is the place where there are no buildings in Angkor City, but its layout contains the most pure ritual meaning of belief space. In fact, we did not enter the Dragon Pool. After coming out of the Saint Sword Temple, we lyricized at the edge of the Dragon Pool in front of us. Water is the source of life, the birth, the cleaning, the treatment and healing, the blessing and the comfort. Best portrait photography point - "here, we "clean" together, get treatment, get blessings, get comfort.