The conceptual argument which is called the “ontological argument” in Western philosophy moves from a concept in the mind to its external referent. This argument is only about a concept which exclusively applies to God. Philosophers unanimously concede that the move from the (mere) concept to the referent is not allowed; at the same time, they agree that the concept representing God, like the existence of God, which is unique and different from that of any other existent, is different from all other concepts and has no parallel among them. Anselm and Descartes have presented the conceptual argument in different ways. Irrespective of the truth or falsity of the leveled criticisms against these two arguments, the present paper suggests another version of this argument (conceptual argument) which, under the necessary conditions, will attain its end more conveniently. This concept enjoys certain features, among which representation is of great importance. The intended concept is the same concept of existence; an intelligible concept which is a part of the nature of the intellect and stands at a distance from any kind of association with whatness and non-existence. After interpreting this argument and exploring the writings of Muslim philosophers, including Mulla Sadra, the author concludes that some of his words could be used as proof for the truth of this claim. If this argument yields fruit, it demonstrates not only the general capability of the intellect in knowing God and His Attributes but also the possibility of providing a new version of some of the objectives of the great figures in the fields of philosophy and gnosis.