The Temple of Space answered many questions and raised many more. One small thing it solidified for me, however, was who designed and maintained the Statues of the Seven (and as you can tell by the title, that's Asmoday.)
Nicole is an Angel, and many of her abilities mirror those of the Shining Shades as a result. One thing she routinely does is create statues through a special method where she divides a large stone block into cubes, carves out the basic shape, and then finishes the rest with magic. If this isn't a practice rooted in the concept of space, I don't know what is!
Funnily enough, guess what we use to access the Temple of Space? That's right - Venti's statue, rotated towards the Temple.
The Statues of the Seven function as map markers for the player, much like the Teleport Waypoints. They mark physical locations in the space of Teyvat that the Traveler is able to visit -- doing so even expands the visible map, increasing the space that's visible from our vantage point in the heavens.
But the real thing that tipped me off to this connection is the fact the Statues of the Seven haven't been updated since shortly after the Cataclysm.
We know this because of the fact that Mavuika's statue still represents her. Kachina believes the resemblance to be a coincidence, which implies that even during the reigns of the succeeding Pyro Archons, the statue continued to represent Mavuika.
Asmoday also went missing shortly after the Cataclysm. With her gone, it makes total sense that the Statues wouldn't be updated.
It makes you wonder about the Defiled Statue. The Abyss Order took one of the statues and inverted it by turning it upside down, which can be seen as an act of defiance against Space. (Or perhaps against Reason, by using Space - an upside-down statue is something "nonsensical," after all, and represents the overturning of the chessboard, so to speak.)
In fact, all of the upside-down Teyvat symbolism (The Chasm, reflection of the stars in a lake, et cetera) becomes rather interesting with that framework in mind - especially since reflections are a reversal of Space.
I've mentioned it before in other posts, but I always believed that the Eternal Oasis was a space constructed inside a goblet because it's meant to keep out the Thousand Winds of Time, resulting in the sandstorm we see surrounding the desert. The many descriptions of the Temple of Space support this theory, asserting that the Temple is a place free of wind, and free from Erosion as a result. Funnily enough though, Deshret's mausoleum is also shaped like an hourglass!
An hourglass is a timepiece that, when turned upside down, reverses the flow of time. Perhaps this is related to the Abyss Order's goal of bringing Khaenri'ah back? Venti does contain associations with the Thousand Winds of Time, after all, so the fact it’s his statue may be significant (it is his statue that leads to the Temple of Space, as well). Or perhaps, rather than time, the flow being reversed here is that of elemental energy, creating a void that fills with abyssal power? Food for thought.
I always found it interesting that Surtalogi, the Sinner seemingly with the power over Space, doesn't seem to be utilizing that power for anything other than destruction. Sure, the tearing apart of matter is a fine use of that power, but it's not as interesting as the sorts of spaces constructed in the Temple of Space. However, if it's true that Asmoday switched sides (as it appears to be), I have hope that we'll see more "nonsensical" spaces in the future created by Asmoday herself-- the kind that would make Escher blush. Hopefully a mix of M.C. Escher-esque optical illusions and gravity manipulation a la Pokemon's Distortion World (it just felt like such a shame not to be able to walk on all sides of those cubes!)
Thanks for reading! I hope that as we learn more about Asmoday, we'll be able to learn more about the Statues as well. Feel free to discuss anything else related to Asmoday, or the role of Space in the story!