Quote Originally Posted by True-to-Caesar View Post
Idk if somebody said that but in ShB it was said that Pixies were actual children who went into some kind of transformation (I don’t remember the details). That’s why they act so silly.

So since it’s not the original race, you will not find them on the Source. Spriggan are different as they’re more in touch with nature and don’t use any illusion magic.
Souls of dead children, if I recall. I'd have to dig into my (very unwieldy) screenshots of ShB dialogue to be sure, though.

So they're not completely whimsical and illogical, but rather operate on a child's logic: fun things are fun, unfun things are unfun, and it's all a giant playground.

Personally, I'm leaning slightly towards the possibility that the pixies were once on the Source, but got wiped out during one of the Calamities, or perhaps just non-Calamity extinction. But their behaviour and way of thinking might have survived in some of the other races like the Sylphs, because they once interacted together, like how the Fairy Kingdom of Il Mheg consists of many races. I admit I have no evidence at all for this, though.