Your welcome AW
After thinking more about this, and reading a bit further, I have an alternate comparison on how this fits in to the conceptions of the divine in other philosophies and religions. Its similar to my thoughts from earlier as to how people who believe in a particular one true god, can follow thelema as a philosophy without conflicting with their religion, but also a little different.
I'd like to try and compare this Thelemic idea to Jewish/Christian ones. I'm a bit wary about it, as it means setting aside any thoughts about different aeons and variant ideas about what/who God is within sects of those faiths... (so read this very loosely please). But for the sake of putting my thoughts into a cultural context more familar to me so I can express what I'm thinking, I hope you'll all forgive me
In a way, I can see Nuit is being similar to the modern Christian conception of God, in the sense of being an infinite unknowable loving thing that cannot be comprehended by our human brains. The stories of those who saw God's true face and went mad fit in with that also. As an infinite unknowable God is not able to fit into our human conception, symbols are needed that we can aspire towards union with. Burning bushes, thundering clouds, personified angels, even Christ the messiah etc.. All conceptions or aspect/faces of the infinite that better fit into our human understanding.
This is interesting to me, when reflecting on the Jewish aversion to idols and idolatry. This is often dismissed as the posturing of a jealous god, competing with the pantheon of other faiths, but I think it could also be seen as a reminder, that the infinite communicates with us via finite symbols, and that we should not confuse the symbol with what it represents.
A personal story from my childhood and my current symbol of the idea of Nuit and Hadit. When I was quite young (toilet training time) I would frequently have a kind of nightmare, or more often sensation on waking in the middle of the night (while deciding should I get up to pee, or just stay in bed and let mum deal with it in the morning

Sorry for sharing this story everyone

and sorry to my Mum for the nights I was too scared to get out of bed). In this sensation, I was aware of myself as a tiny little thing, not even a small body or anything with definable borders, but very much like a point. The point-me, was set in empty space, and surrounded in all directions in nothingness that goes on forever. As a child it was a terrifying feeling, complete isolation and seperateness. Looking back on it in light of our recent studies, I can see it as a metaphor of my being a Hadit in the body of Nuit, not yet having reached tipareth and so feeling isolation rather than union. Perhaps also its significant because of the timing, and related to when my Ego became a stronger force in my life.
The really interesting thing, is that as I got older I could create that same sensation while wide awake, by rubbing the back of my bottom teeth with my tongue. I used to always think to myself, I wonder physiologically, what there could be that would connect my teeth, to the sensation of being a dot in an infinite nothingness.
I've not thought about this for years, but remembered it for some reason today. This brings an extra layer to the "shin/tooth" and its attribution to the Aeon card. The card being another symbol of something similar, the dot within the all, related to a tooth.