Svarloka (in Buddhism: Arupadhatu), the best and holiest realm, reserved with the gods. Also known as svargaloka. The interior courtyard as well as 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://southindiantemplesnearaustralia.blogspot.com/