Monotheism is the belief in theology that only one deity exists. The concept of "monotheism" tends to be dominated by the concept of God in the Abrahamic religions, such as Judaism, Christianity, Islam, etc. , by the Platonic concept of God as put forward by Pseudo-Dionysius the Areopagite, as well as the Advaita, Dvaita and Vishishtadvaita philosophies of Hinduism, although the latter philosophies admit the existence of a plethora of divine beings including less-powerful deities such as devas.
