To understand Tagitsuhime, who resides on Oshima, one must first look at Nakatsu-miya not merely as the "middle of the three shrines," but as a sanctuary situated mid-voyage on the sea. Munakata Taisha links Okitsu-miya on Okinoshima, Nakatsu-miya on Oshima, and Hetsu-miya in Tajima as three shrines, collectively calling them Munakata Taisha. Its official history designates the three goddesses as the daughters of Amaterasu Omikami, layering the memories of state rituals and foreign exchange over the national treasures excavated from Okinoshima^[1]. Tagitsuhime of Nakatsu-miya stands at the center of this immense religious sphere, receiving and passing along both the awe of the open ocean and the prayers of the mainland.

Today's Nakatsu-miya is treated as Munakata Taisha Nakatsu-miya^[5] even in official World Heritage documents. It is situated at 1811 Oshima, Munakata City, Fukuoka Prefecture, and the official Munakata Taisha webpage lists its enshrined deity as Tagitsuhime-no-Kami^[2]. Here, Tagitsuhime is not an abstract water deity, but a goddess with a tangible island, shrine buildings, approach paths, and festivals. Oshima is an inhabited island reached by ferry from the mainland, unlike Okinoshima, which generally refuses human entry. Yet simultaneously, Oshima is an island that looks out toward Okinoshima, houses the Okitsu-miya Yohaisho (worship hall for praying from afar), and transmits the taboos of the sea to human settlements. Tagitsuhime's "middle" exists between an accessible sacred site and an inaccessible one.

Tracing the pronunciation of her divine name sharpens the contours of this goddess even further. "Tagitsu" encompasses the state of water rushing violently and boiling up. Rather than a deity of a calm lake surface, Tagitsuhime is a deity of places where tides shift, currents change, and a ship's judgment is tested. Guarding a voyage does not simply mean calming the waves. Sometimes it means allowing progress, sometimes ordering a wait, and sometimes forcing a turn back. Tagitsuhime's protection works not as a power to make the sea obey humans, but as a power to return humans to the sea's rhythm.

Mount Mitake, behind Nakatsu-miya, is indispensable for considering Tagitsuhime's Aramitama (rough spirit). The official Munakata Taisha webpage notes that Mitake Shrine is located at the highest point on Oshima, enshrining Amaterasu Omikami and the Aramitama of Tagitsuhime^[2], while noting that according to Japanese mythology, it is said to be the site of Tagitsuhime's descent. If Nakatsu-miya at the foot is the shrine that greets worshippers, Mitake at the summit is where the island itself received the deity. The shadow of the mountain visible from the sea, and the sea route viewed from the mountain—these intersecting gazes forge Tagitsuhime's divinity.

The history of rituals shown in official World Heritage documents corroborates this duality. It is noted that by the late seventh century, open-air rituals sharing commonalities with Okinoshima rituals were conducted at the Mitakesan ritual site on Oshima and the Shimotakamiya ritual site on the mainland. Furthermore, the *Kojiki* and *Nihon Shoki* from the early eighth century record that the Munakata clan worshipped the three Munakata goddesses across the three shrines. Here, the structure of the three shrines connected by the sea^[4] was established. Tagitsuhime bears the intermediate memory within this, linking the ancient rituals of Okinoshima to the shrine-based rituals on the mainland.

Discrepancies with classical texts are, in fact, an entryway to reading Tagitsuhime more richly. In the oath-taking section of the *Kojiki*, the name Takitsuhime-no-Mikoto appears, and she is recorded as being worshipped as one of the three Munakata goddesses. On the other hand, in the present Munakata Taisha, Tagitsuhime is the deity of Nakatsu-miya. Reducing this difference to "which is correct" loses the depth of the Munakata faith. The divine names in the classics, the three-shrine rituals preserved by priestly families, and the archaeological landscapes organized as a World Heritage site represent different historical layers. Tagitsuhime is also a deity who traverses these layers.

Placing the maritime rituals overseen by the Munakata clan in the background, Tagitsuhime ceases to be merely the "second of the three goddesses." Official World Heritage documents state that the ancient rituals on Okinoshima were carried out by people of the Munakata region who possessed advanced navigational skills and engaged in foreign exchange. The sea was a trade route, a danger zone, a path for diplomacy, and a place to pray to the gods. Nakatsu-miya on Oshima is where all of these are concentrated into a single point. Here, travelers simultaneously feel the awe of heading out to the open sea and the relief of returning to the mainland.

If reading this figure in an encyclopedia, Tagitsuhime is the "guardian deity of the flow." Flow is not just water currents. From myth to ritual, from Okinoshima to Oshima, from taboo to worship, from the prayers of the ancient state to modern traffic safety, the faith has flowed down to the present, changing its form. Tagitsuhime reconnects the things that threaten to sever along the way. Calming her Aramitama on the mountain peak, looking up to her Nigimitama (gentle spirit) at Nakatsu-miya, and gazing toward Okinoshima beyond the remote worship hall. Her divine authority manifests itself more as the shifting tides signaling the time to cross, rather than through flashy miracles.