The Supreme Lord is One. He is Infinite and Absolute. If anything was outside the Absolute, the Absolute would lose His position. So, ontologically God is One. But He has got Infinite Manifestations. His everything is infinite - infinite creations, infinite created worlds, infinite transcendental realms etc. As per the degree of the submission of the aspirant, the Lord's transcendental qualities will descend to him. But that is not the end. Nobody can finish realisation of Supreme Lord. It will go on ad infinitum.