Support system
The ''sōrin'' is supported by a long shaft, often obtained by joining two or even three shorter ones, that runs to the base of the edifice. Although it is often believed that the pillar at the core of a Japanese pagoda is a device to strengthen it against earthquakes, its sole purpose is to support the long and heavy bronze ''sōrin''. In many cases the central shaft doesn't reach the ground, but has its base somewhere above it within the pagoda, where it is supported by beam or other means. At Nikkō Tōshō-gū (1818), for example, it is suspended with chains from the fourth floor. From its base exits a long tenon which, penetrating a mortise in a , prevents it from oscillating. This structure was adopted not as a measure against earthquakes but because, with aging, the wood of the pagoda, whose grain is mostly horizontal, tends to shrink more than that of the vertical shaft, causing the opening of a gap between the two at the roof. From the gap rain would enter, causing rot. In other cases, this was done to allow the opening of a room at the ground floor and therefore create some usable space. (Early wooden pagodas had no usable space.)Structure
Wooden pagodas
The ''sōrin'' of a wooden pagoda is usually made of bronze and is divided in several segments called (from top to bottom): * The , a spherical or tear-shaped object, shapes sacred to Buddhism. Believed to repel evil and fulfill wishes, it can be also found on top of pyramidal temple roofs, of stone lanterns or of tall poles. It can have flames, in which case it is called . Those made before the Momoyama period tend to be rounder. * The , the piece immediately below the ''hōju'' * The , consisting of four decorative sheets of metal set at 90° to each other and installed over the top of the main pillar of a pagoda. *The , small bells attached to the edges of a ''sōrin's'' rings or of the ''suien''. * The , the largest component of the ''sōrin''. In spite of their name, there can sometimes be only eight or even seven of them. *The , a circle of upturned lotus petals, usually eight in number. There can also be another circle of petals facing down. * The , which sits between the ''ukebana'' and the ''roban''. *The , on which rests the entire finial. Because it covers the top of the roof in order to prevent leaks, it normally has as many sides as the roof itself (four, six or eight).Stone pagodas
Sōrintō
The is a type of small pagoda consisting just of a pole and a ''sōrin''.Notes
References
{{DEFAULTSORT:Sorin Japanese architectural features Roofs