Ame-no-Uzume-no-Mikoto is the wife of Sarutahiko-no-O-Kami. It was Ame-no-Uzume-no-Mikoto who, through a dance, caused the Sun Goddess, Amaterasu-OmiKami, to emerge from a cave, thus restoring light once again to the earth. Sarutahiko-no-O-Kami, guardian Kami of the martial arts as well as courage and justice, is the ancestor of the earthly Kami and stands at the junction of earth and heaven, Tsubaki Grand Shrine in Mie, Japan. Ame-no-Uzume-no-Mikoto, known as the fearless one, is the guardian Kami of art and entertainment, marriage, joy, harmony and meditation; her main shrine is also Tsubaki Grand Shrine in Mie, Japan.
Basic of the story of Amaterasu-OmiKami (Kami of the Sun) secluding herself in the Ame-no-Iwa-ya (rock dwelling/cave) to avoid further contamination/impurity after the encounter with her brother Susanao-no-Mikoto. The result was terrible for Heaven and Earth. Takama-no-Hara, the High Plain of Heaven, was obscure. With purifying sunlight removed from the Earth Plain many misfortunate occurrences arose. All the Heavenly Kami worked together to bring about the return of the source of light. The ancient texts deal with the actions, objects and potentialities assembled in great detail: jewels and a sacred mirror and a Hinoki palace were among the things made.
Of course the uncovering action was one in a complex series of magical events. Western scholars have focused on this because of the Western society's discomfort/fascination with Women's bodies and sexuality in general. Another way to view the reason Ame-no-Uzume-no-Mikoto showed her breasts is to remind Amatersu-OmiKami of her divine mission to nourish all life and exposing her belly was to remind Amaterasu-OmiKami that the Sun is the ultimate source of life for everything in Heaven and Earth. This divine dance made all the assembled Kami so happy they laughed, shouted and made "life sounds" as well as songs of praise. Then divine illumination was restored to Earth and Heaven. This episode is an example of Divine Female Power (generative power) and intelligence (life power) in progress with life process.