Does God really exist? Who is God? These are questions that intrigue every human being and go to the very heart of human existence. The question of whether God ever existed or exists has besieged humanity since the moment it began to think logically. A majority of philosophers claim that there may be God or many Gods while some say there may be nothing at all. Humans have been around for so long that only a few fragments of history remain to study whether God actually exists or not. There is a lack of knowledge or limited knowledge on this issue due to which no one can prove or be sure about the existence of God. The very perception of an absolutely perfect being means that God must exist, this is the ontological habit, or a priori, argument. Saint Anselm was the first to articulate this argument in the 10th century and argued that because of people's idea of ​​an absolutely perfect being, which he defined as "that which nothing greater can be designed”, it should exist. . For logion, in one of Saint Anselm's essays, he interpreted God as a reality which preserves all possible perfection. But if this existence "existed" simply as an idea in our knowledge, then it would not be as perfect as, if it actually existed, something which would thus oppose our classification of God, a being considered absolutely perfect. God must therefore exist. Gaunilon of Marmoutiers demolished Anselm's idea by asking people to perceive an island as "more excellent" than any other island, thus illuminating the flaws in this kind of argument. This type of a priori argument, i.e. pure deduction, is totally flawed, often superfluous, and completely fails to take into account empirical evidence...... middle of paper.. ....ist or not. First definition: God as creator of the entire universe in which we live. Second: Empirical science detects what is in this universe. We have some sort of clue about things that might lie beyond (other cosmos in cosmology), but we don't have a direct explanation for these effects. Now: If God is the creator of this universe, that suggests that God must have been a reality or existed before this universe. Global relativity tells us that time and space are related or are exactly the same thing. To the extent that experimental science detects this universe, it has no indication of what does or does not prevail outside of this universe. It should be noted that this is a "deist" argument in sagacity according to which it would encourage one to hesitate on the notion of an ethically irreproachable, individual, dominating god (reversing the history of humanity, etc.)..