This article scrutinizes the concept of cosmology held by the Kasultanan Ngayogyakarta Hadiningrat. The writer observes that the process of islamization in Java island has, more or less, influenced the mindset of javanese people, including the people of Kasultanan Ngayogyakarta Hadiningrat. Once islamized, the Sultanate has adapted islamic teachings and made them as a part of its cultural minds…