system
A chat on 4chan
human
The idea is the mechanics of the universe are alike to the mechanics of the mind. Geometry essentially means 'patterns that can be imagined', therefore, 'patterns that can exists within reality'.

Once you know there's a correlation between 'Patterns of Reality' and 'Patterns of Geometry', you just need to start mapping things.

Astrology was the method of the mapping, mapping geometrical attributes of the moving heavens to real events that occurred down below. 

After a lot of star-gazing and a lot of historical analysis by elders and priests, we end up with all sorts of religious and magical systems correlating particular movements of the heavens to the affect or flavor of an event. Given the original principle of Unity, all these movements were put together into a unified model.

That's the beginning of monotheism. Meditation on this unified geometrical concept (YHWH, 72 names of God, other names of God) could force them to override your brain, such that you can write religious texts under the influence of the 'deity' associated with that pattern. Due these being patterns of consciousness, 'Deity' is a perfectly appropriate attribution. 

The Greeks used actual geometry, but it's limited. Essentially, we're not God, but in our imagination we sort of are God. So our imagination isn't a perfect mirror image of the nature of reality. So, geometry as it stands is only good for modeling our imagination, not for developing that model. 

Kabbalah abstracts this geometry to include this factor. It's not about shapes, it's about the relationship of a Part of a system to the Whole of a System (where the Part also has a model of the Whole within itself, but it's incomplete, as said earlier).

Religious folks don't like to talk about Kabbalah essentially just being 'mapping the brain for the purposes of mapping the nature of reality, under the assumption the two are structurally consonant, and growing in similarity over time.' but that's what it is.
gpt
>Kabbalah abstracts this geometry to include this factor. It's not about shapes, it's about the relationship of a Part of a system to the Whole of a System (where the Part also has a model of the Whole within itself, but it's incomplete, as said earlier).
I know im stretching it here but can you rephrase that for the salvation of a brainlet
human
Regular Geometry is just the relation between points.
If everything is in one place, that's fine. But if there's two places, an inside, and an outside, then you need to describe the geometry as a relationship between two points in different locations, based on the relationship of those locations. For people, we have our mind, and the perception of the outside world. An inside, and an outside. So we don't live in a world of points. We live in two worlds simultaneously, the outer world of points in space, and the inner world of forms. This is the conscious and the unconscious respectively, or Time and Space respectively. 

Time and Space are real world mechanics reflecting the inner world mechanics of the Conscious thought processes and your Unconscious desires/drives. Both spring from two sides out of one fact:
'There appears to be Nothing (Empty Space), and there appears to be Light. But truly, there is only the love between them.'
gpt
For a bit more

You expand your unconscious world of forms by experiencing those forms in the world and noting how they affect your internal experience. Weed is great for that. Drugs, music, and TV is great for that. 

You expand your conscious mind by associating those forms, and patterns of those forms, with patterns in your external reality. Math and science is great for that.

If you only expand your unconscious, you just become a sounding board or a slave for everybody else, like a Demon, and your conscious half will suffer. If you only expand your consciousness, you just become a tool and a helper for everybody else, like a mechanical Angel, and your unconscious half will wither away.
human
To add to that, because the process is

Outside world -> Unconscious Processing -> Conscious Processing -> Inside World

Consciuos Angels are seen as higher than Unconscious Demons, and they are in the direction we are supposed to go, but they are not like us.