Svarloka (in Buddhism: Arupadhatu), The very best and holiest realm, reserved for the gods. Generally known as svargaloka. The interior courtyard plus the roof of each temple symbolize the realm of svarloka. The roof of Prambanan temples are adorned and crowned with ratna (sanskrit: jewel), the shape of Prambanan Ratna https://southindiantemplesnearme.blogspot.com/