도선 국사는 『도선비기』에서 구정봉의 상서로운 기운으로 장차 500년 동안 세상을 다스릴 제왕이 나온다고 했다.
He also wrote a book, "A Secret Record of Doseon," in which he prophesied that the auspicious energy of Gujeongbong would give birth to a king who would rule the world for over five hundred years.