Spoilers "Conspiracy" theory

[Gary_Seven]

The Vezda are Pah'Wraiths (or something similar).

I also just assumed this from the similarity in design and the dialogue around these Vezda entities.

was not aware of these rumors beforehand.

 

[fireproof78]

Or at least similar noncorporeal life forms of negative, destructive energy.

Akin to the being from Day of the Dove.