The hallowed ground of ) that is revered at the rear shrine of Tenkawa jinja reigns over the middle reaches of the Ōmine Mountains (大峰山). Its solemn contour emanates a religiously profound presence that has made it a bastion of the Kannabi faith (神名備) that incarnates the water, trees, and earth with deities, and ranked it number one amongst Japan's sacred mountains. It is also believed that Japan's version of the goddess of music, performing arts and water, Benzaiten (弁才天), originated here when the founder of ascetic Buddhism, En no Gyōja (役行者), saw the goddess descend from the heavens while he was praying for the safety of the country on Mt. Misen, and welcomed her into his basin. The shrine was actually built in the latter half of the 7th century by the Prince Ōama (大海人皇子), (later Emperor Tenmu (天武天皇), on Mt. Biwa in this same basin, after winning the Jinshin War (壬申の乱), as a gesture of gratitude to the miracle-working Benzaiten he had prayed to for victory. The site would later become the most sacred place on the mountain, as prominent monks of the likes of Kūkai (空海), also known posthumously as Kōbō-Daishi (弘法大師), confined themselves inside in prayer. The shrine is also closely tied to Noh (能) and is recognized as the goddess of art, theater, and music. It has many important cultural properties in the history of this performing art such as an "Nōmen Akobujō - 能面 阿古父尉" mask of an old man donated by the 14th century Noh Playwright Motomasa Kanze.