The Supreme Transcendental Truth is Lord Kåñëa. The whole Bhagavadgétä centers around the declaration of Kåñëa as the Supreme Personality of Godhead. That is the version of all Vedic literature. Paratattva means the Supreme Reality, who is understood by the knowers of the Supreme as Brahman, Paramätmä and Bhagavän. Bhagavän, or the Supreme Personality of Godhead, is the last word in the Absolute. There is nothing more than that.TheLord says, mattaù parataraà nänyat kiïcit asti dhanaïjaya. Impersonal Brahman is also supported by Kåñëa: brahmaëo pratiñöhäham. Therefore in all ways Kåñëa is the Supreme Reality. One whose mind, intelligence, faith and refuge are always in Kåñëa, or, in other words, one who is fully in Kåñëa consciousness, is undoubtedly washed clean of all misgivings and is in perfect knowledge in everything concerning transcendence. A Kåñëa conscious person can thoroughly understand that there is duality (simultaneous identity and individuality) in Kåñëa, and, equipped with such transcendental knowledge, one can make steady progress on the path of liberation.