In Islam, Allah is the only real supreme being, all-powerful and all knowing Creator, Sustainer, Ordainer, and Judge of the universe. Islam puts a heavy emphasis on the conceptualization of God as strictly singular (tawhid). God is unique (wahid) and inherently one (ahad), all-merciful and omnipotent. According to the Qur'an there are 99 Names of God (al-asma al-husna lit. meaning: "The best names") each of which evoke a distinct characteristic of God. All these names refer to Allah, the supreme and all-comprehensive divine name. Among the 99 names of God, the most famous and most frequent of these names are "the Compassionate" (al-rahman) and "the Merciful" (al-rahim)., everything in the world is a sign of God we can see only the activities of God and cannot see God.