According to the legends of Futami Okitama shrine (founded in the early 8th century), the rocks were worshipped 2,000 years ago as “torii of the sea,” with the purpose of venerating a sacred stone below the surface of the distant ocean glimpsed between them. The worship of paired rocks can be traced to the days of the Kojiki and Nihon Shoki (The oldest and second-oldest Japanese written works, composed in the early 8th century), and the Tenson Korin. wedded rocks do not merely symbolize the bonds of love, but are also deeply connected to the origins of Japan.