"If I die, Bury me in Donghae (The East Sea). So when he died, but left a will to the of his body be cremated in accordance with Buddhist ceremony to bury the ashes the East Sea. It is called , and it is the Tomb of Munmu of Silla. In this way, 'Munmu of Silla' will become a great dragon and protect the country. His remains from the land in accordance with Munmu of Silla's will be cremated and the East Sea of with and frugal lifestyle he paid funeral. When 'Munmu of Silla' died before completing the temple, his son King Sinmun completed it in 682. And he named it " " to thank 'Munmu of Silla's grace. Cho geung-seop(조긍섭), who toured Gyeongju from 1918 to 1926 during Korea under Japanese rule, wrote a poem using the tomb of Munmu of Silla. In his poem, Munmu of Silla instructed him to cremate in the East Sea with dying words. People suspected he might have designated such a big tomb. However, people guess that the cremate might have caused him to bury his bones and become a big tomb. He will not get a place like this without great virtue. Sinmun of Silla built for his father, Munmu of Silla. In 682, a public official said 'Small mountain in Donghae is coming to Gameunsa'. According to the fortune-telling, King Munmu of Silla, who became the dragon of the sea, and Gim Yu-sin, who became the king of heaven, said, " Go out and take the present." When he came and saw at , it looked like a turtle's head and had bamboo on it, divided into two by day and combined into one by night. Nine days after the storm, the king entered the mountain and the dragon said, "If you made a flute out of that bamboo, the whole world would be at ease. " So he took it out, made a flute and kept it. The name of this flute is Manpasikjeok. The reason for the name is that when the country is worried, he played the flute and country has become quiet. Unlike most royal tombs, Munmu of Silla's tombstone could not be placed in front of them. He was buried in rocks of the Donghae.