Overspace

Overspace is described as a dimensional space above and apart from all other realities.It is a place where one can confer and communicate with abstract cosmic entities like Eternity, Death, and the Living Tribunal. It is portrayed as a parallel dimension that is also accessible via growing to an immense size with Pym Particles. The exact opposite of Overspace would be Underspace, which lies below the dimension of the Microverse.