Can someone explain Dalamud and Project Meteor and Meteor spell?

[Viridiana]

I know Dalamud was a satellite used to bind Bahamut and keep him summoned as an energy source but how did they keep him summoned without Aether?

1. Don't Primals need both Prayers/Faith *AND* crystals/Aether to sustain their form?

2. Also when they try to re-bind Bahamut in a blue field that looks a lot like Dalamud? Dalamud wasn't a magical field it was literally a physical binding.

3. Did the Garleans know if Dalamud had Bahamut in it?

4. Wasn't the project aimed to annihilate Eorzea and purge it of Primals? If so, why drop an elder primal on it(assuming they knew what was inside).

5. At some point Nael tried to cast "Meteor" when the original Dalamud Control System was lost. The lorebook says Meteor (BLM LB3) is a concentrated chunk of crystalized Aether that falls from the sky, resembling an asteroid (hence the name). Is BLM's Meteor different from the Allagan spell, "Meteor"?

6. How/why would the spell meteor drop Dalamud instead of simply calling down a Comet like raid bosses cast it (Thordan EX, Xande, etc). Or was the spell that Nael was trying to cast simply a spell that just magically drew Dalamud to the ground as a fail safe or something? I'm confused...

Answering these from memory, may be slightly off, especially since I didn't play much in 1.0 and 2.0 was years ago now.

1) Yes, but if they aren't active they don't need as much aether. They also don't need too many people praying for their existence, if the 3.0 primals are anything to go by.

2) I think this is more a case of "convergent evolution," so to speak. If you're going to put something in a cage, a symmetrical cage makes the most intuitive sense, and you don't get more symmetrical than a perfect sphere. I guess that doesn't explain the swords pinning him in, though...

3) I want to say Nael did. Even if he didn't, I'm pretty sure he was corrupted by Bahamut into doing what he did, so...

4) Because Nael was tempered. Tempered people kinda stop caring about their original plans.

5) This seems like something I would need to have played more 1.0 to answer, but in all the lore discussions I've seen, I don't recall Nael's Meteor Project being referenced as a spell. My memory is sometimes faulty, though.

6) What I do remember of Project Meteor was that it planned to drop a moon on Eorzea using Allagan technology that I assume was meant to control Dalamud. Maybe they left controls available incase they ever sensed the seals weakening? I wouldn't call it a fail safe, though. It's pretty much the opposite of fail safe.

Did you go through the main story? It explains it unless your skipping it.

Did they? I don't remember any of this being touched on in 2.0 or 3.0 MSQ. 2.0 MSQ seemed to be largely "Man, the Calamity sucked; we're still rebuilding. Man, these primals are killing the land; please go stop them. Man, the empire has a weapon that consumes primals; please go stop it."