Svarloka (in Buddhism: Arupadhatu), the best and holiest realm, reserved to the gods. Generally known as svargaloka. The internal courtyard plus the roof of each and every temple symbolize the realm of svarloka. The roof of Prambanan temples are adorned and crowned with ratna (sanskrit: jewel), The form of Prambanan https://www.diigo.com/item/note/avyq4/9t3s?k=8b0bcea108aa28690f829656eeb4fafc