"Cosmology deals with what the Universe is essentially. One might argue that there exist several similar but interchangeable cosmologies in Thelema: for example, the Creed of the Gnostic Mass gives a rudimentary cosmology, the “Matter in Motion” idea in the New Comment (to Chapter 1, Verse 1), and the Qabalistic understanding in chapter 0! of Book of Lies. In the end, the most widespread cosmology, and the one rooted in The Book of the Law, is the idea of Nuit, Hadit, and Ra-Hoor-Khuit.
Thelema understands Nuit as Infinite Space which is “Heaven” that is occupied by various Points-of-View, or Hadit. Each star – “every man and every woman” – is in the Body of Infinite Space and has Hadit as its core, who is “the complement of Nu, my bride,” “the flame that burns in every heart of man, and in the core of every star,” as well as “Life, and the giver of Life.” These together create the Universe as we know it. “In the sphere [Hadit is] everywhere the centre, as [Nuit], the circumference, is nowhere found.” There are many interpretations of Nuit and Hadit – for example, with Nuit as matter and Hadit as motion and their interplay being the universe but the basic idea remains the same."