The Jain philosophy's concept of (sat) Reality is different from the rest of the other schools of philosophies. The definition of Reality as given by Umāsvāti (3rd cent. CE) is as follows: utpāda-vyaya-dhrauvya-yuktam sat.[1] Existence is characterized by origination, destruction and permanence. This conception of reality is peculiar in Jainism. An existing reality in order to maintain its permanence and continued existence must, necessarily undergo change in the form of origination and destruction. It seems to be paradoxical in the beginning. But a closer analysis and minute observation will help us to appreciate the significance of this description of reality. Without being clear about the definition of utpāda, vyaya etc. the understanding of Jain reality is incomplete. Let us proceed to define the trinity one by one.