[Barnabas studies Castiel for a moment. Any information he gives could be potentially weaponized against him or other Dominants, and yet...like Sandalphon, there is a level of ease in which he finds himself able to speak. Not quite trust, but a level of understanding and...recognition that he does not mind sharing some information.

Besides, this is not Valisthea, and Castiel is not human.

However, seeing as Castiel did not specify what he was asking about, Barnabas decides the focus:]

Can a wolf flourish under the guise of a sheep? No. Its very being atrophies as it attempts to be that which it is not. Remove its fangs, blunt its claws, but it no more has hooves nor can sustain itself upon flora than before. It is ever what it always has been from the first.

To deny what we are is to invite naught but destruction and misery.