Svarloka (in Buddhism: Arupadhatu), The very best and holiest realm, reserved for that gods. Also known as svargaloka. The internal courtyard plus the roof of every temple symbolize the realm of svarloka. The roof of Prambanan temples are adorned and crowned with ratna (sanskrit: jewel), The form of Prambanan Ratna https://www.tumblr.com/hindutempleadelaide