He disapproves the idea of contingent things by arguing that if that was the case then nothing would be in existence at the moment. He therefore supports the idea of necessary existence and states that there is a hierarchy in which case each lower necessary existent thing depends on the higher to infinity but says this needs to be explained (McDermott, 1993)
In case God does not exist then something greater than God can be imagined such as a God that does not exist. Anselm therefore concludes his argument using a five-point argument which says: God is that than which no greater can be conceived; this therefore means that there is nothing greater than God that can be imagined; therefore there is nothing imaginable that can be greater than God; but if God does not exist then there is something imaginable that is greater than God; therefore God exists (Williams, 2007)