Tahōtō
A is a form of Japanese pagoda found primarily at Esoteric Shingon and Tendai school Buddhist temples. It is unique among pagodas because it has an even number of stories (two). (The second story has a balustrade and seems habitable, but is nonetheless inaccessible and offers no usable space.) Its name alludes to Tahō Nyorai, who appears seated in a many-jewelled pagoda in the eleventh chapter of the Lotus Sutra. With square lower and cylindrical upper parts, a "mokoshi" 'skirt roof', a pyramidal roof, and a finial, the "tahōtō" or the larger "daitō" was one of the seven  halls of a Shingon temple. After the Heian period, the construction of pagodas in general declined, and new "tahōtō" became rare. Six examples, of which that at Ishiyama-dera (1194) is the earliest, have been designated National Treasures. There are no examples in China, whether architectural or pictoral, of anything that resembles the "tahōtō", although there is a Song dynasty textual reference to a "'tahōtō" with an encircling chamber'. Hōtō. The or treasure pagoda is the ancestor of the "tahōtō" and dates to the introduction to Japan of Shingon and Tendai Buddhism in the ninth century. No wooden "hōtō" has  survived, albeit modern copies do exist, and stone, bronze, or iron, and specimens are always miniatures comprising a foundation stone, barrel-shaped body, pyramid roof, and a finial. Daitō. While the "tahōtō" is 3x3 ken (bays), a larger 5x5 ken version exists, known as or 'large pagoda'. This is the only type of "tahōtō" to retain the original structure with a row of pillars or a wall separating the corridor ("hisashi") from the core of the structure, abolished in smaller pagodas. "Daitō" used to be common but, of all those ever built, only a few are still extant. One is  at Wakayama prefecture's Negoro-ji, another at Kongōbu-ji, again in Wakayama, another at Kirihata-dera, Tokushima prefecture, another at Narita-san in Chiba. (See the respective list entries.) Kūkai himself, founder of the Shingon school, built the celebrated "daitō" for Kongōbu-ji on Kōyasan; almost fifty metres high, chronicles relate that 'the mightiness of its single storey outdoes that of multi-storeyed pagodas'. The specimen found at Negoro-ji (see photo above) is 30.85 meters tall and a National Treasure. Structure. Single-storey. Japanese pagodas have an odd number of stories. While the "tahōto" may appear to be  twin-storied, complete with balustrade, the upper part is inaccessible with no usable space. The lower roof, known as a "mokoshi", provides shelter and the appearance of an additional storey. Floor plan. Raised over the , the ground floor has a square plan, 3x3 "ken" across, with a circular core. Inside, a room is marked out by the , a reference to the Four Heavenly Kings. The main objects of worship are often enshrined within. Upper part. Above is a second 'tortoise mound', in a residual reference to the stupa. Since exposed plaster weathers rapidly, a natural solution was to provide it  with a roof, the "mokoshi". Above again is a short, cylindrical section and a pyramidal roof, supported on four-stepped brackets. Finial. Like all Japanese pagodas, the "tahōtō" is topped by a vertical shaft known as the . This comprises the base or 'dew basin'; an inverted bowl with attached lotus petals; nine rings; 'water flame'; and jewel. The finial's division in sections has a symbolic meaning and its structure as a whole itself represents a pagoda. Miniature versions. A number of smaller versions of the "tahōtō" are known, of stone, bronze, iron, or wood, and similar to the "hōtō . Meaning. A number of mandala show the Iron Stupa in southern India, where the patriarch Nāgārjuna received the Esoteric scriptures, as a single-storey pagoda with a cylindrical body, a pyramidal roof, and a spire. The forms used in the tahōtō", namely the square, circle, triangle, semi-circle, and circle, may represent the Five Elements or the Five Virtues. The egg-shaped stupa mound or aṇḍa may represent Mount Sumeru, with the finial as the axis of the world; or, by a folk interpretation, the square base may represents a folded robe, the dome an overturned begging bowl, and the  spire a walking staff. The "tahōtō" served not as a reliquary tower but often as an icon hall.