The monist, non-dual conception of existence in Advaita Vedanta is not accepted by the dualistic/theistic Dvaita Vedanta. Dvaita Vedanta calls the Atman of a supreme being as Paramatman, and holds it to be different from individual Atman. Dvaita scholars assert that God is the ultimate, complete, perfect, but distinct soul, one that is separate from incomplete, imperfect jivas (individual souls). The Advaita sub-school believes that self-knowledge leads to liberation in this life, while the Dvaita sub-school believes that liberation is only possible in after-life as communion with God, and only through the grace of God (if not, then one's Atman is reborn). God created individual souls, state Dvaita Vedantins, but the individual soul never was and never will become one with God; the best it can do is to experience bliss by getting infinitely close to God. The Dvaita school, therefore, in contrast to monistic position of Advaita, advocates a version of monotheism wherein Brahman is made synonymous with Vishnu (or Narayana), distinct from numerous individual Atmans. Dvaita school, states Graham Oppy, is not strict monotheism, as it does not deny existence of other gods and their respective Atman.