In Nomine/Persona 4 Crossover

[Sirrocco]

Not a note of disturbance... so it's perfectly natural and part of God's plan for humans to have and wield Personae. That should cause some shakeups in the Celestial councils.

That starts doing some interesting and mindbendy things with the "The being who created the persona is an extremely powerful and essentially unknown native of the marshes (ethereal spirit?)" stuff mentioned on the originating thread.