Anima weapon lore

[Cilia]

I have a bit of a question about the Anima lore!

So the whole thing about the weapon is that it's a living soul enshrined in a weapon, sentient to the point where it has a gender, and the Awoken stage has that soul spilling out and undulating around the weapon itself. Any dual weapons (Monk, Ninja, Paladin, etc) naturally have the effect around both models; while it's certainly not two different souls (as cool as that would be), what does that mean for the one that's in two? Is it divided or split in some way?

The possibilities are threefold:

1. The pseudosoul that inhabits the Anima weapon is split, and should manifest as two separate entities. (It happens again after you complete the Anima weapon proper, just FYI, though there it's clarified that apparently only you can see it. Or maybe the Warrior of Light's PTSD is finally catching up to them and causing a hallucination?)
2. Similar to 1 above, except the pseudosoul is one being; it simply requires both pieces to be in close proximity to gain consciousness.
3. (Most likely possibility) Since the pseudosoul that inhabits our Anima weapon is kept in a single soulstone, or something akin to it, the soulstone is simply kept in one of the pieces and the pseudosoul can manifest and retain its consciousness without the other piece.