Primal confusion - spoilers

[Andres_Lonegrief]

As far as I knew:

Phoenix was turned into a primal by the twelve (whom had been summoned by Louisoux in the attempt of sealing Bahamut) .

Odin's sword is the real primal (Odin is just a temptered victim that keeps praying so that the sword can be kept alive).

I didn't know about the difference between Primals and Eikons, but this might explains a few things.

Primals are the primary entity (the real "god"), then Eikons (anciente greek for image) are their representation / aberrations (what is summoned).

This wouldn't explain why Bahamut is regarded as an elder primal though.

Btw, where do they talk about paragons/reapers and eikons? I don't remember reading about them in the main quests ...

[Cilia]

As far as I knew:

Phoenix was turned into a primal by the twelve (whom had been summoned by Louisoux in the attempt of sealing Bahamut) .

Odin's sword is the real primal (Odin is just a temptered victim that keeps praying so that the sword can be kept alive).

I didn't know about the difference between Primals and Eikons, but this might explains a few things.

Primals are the primary entity (the real "god"), then Eikons (anciente greek for image) are their representation / aberrations (what is summoned).

This wouldn't explain why Bahamut is regarded as an elder primal though.

Btw, where do they talk about paragons/reapers and eikons? I don't remember reading about them in the main quests ...

We don't know how exactly Louisoix ascended into Phoenix. It's implied that it's because of the massive quantity of aether from the botched Twelve summoning combined with the prayers of the people for deliverance and rebirth.

The exact difference between primals and eikons has yet to be cleared up. As far as I can tell from what little information we have, eikons don't need active worshipers to maintain their identity or presence in the world.

Bahamut is regarded as an elder primal because he predates any modern civilizations. The Meracydian dragons were all either wiped out or imprisoned in Dalamud or on Azys Lla, and vanished into memory before Dalamud's fall. What defines a primal as "elder" isn't clear, but suffice to say if it's worshiped by a modern civilization it's not an elder primal.

The reapers were (are) an alternate form the Ascians took on during 1.x. The Ascian Prime at the end of the Aetherochemical Research Facility heavily resembles them, for reference. The Ascians are also occasionally referred to as Paragons, even during 2.0+ (Ifrit says they told him not to tolerate us, for instance, and I believe Alphinaud refers to them as Paragons once or twice during the main scenario).

You only get told there's a distinct difference between primals and eikons if you pick up the Heavensward Primal EX quest.