u/Kalenden6

So Vampire: The Masquerade Auspex 1: Sense the Unseen allows you to see ghosts and spirits, among other things.
Now, those can be as common or uncommon as the Storyteller wants them to be, but I have already included Hecata NPCs and Black Spiral Dancers. So the story requires them to be relatively common.

If a player purchases Auspex and this power in such an environment, I take it that they would suddenly be ablaze with the vision of dozens of beings that they didn't even know existed beforehand. Something that would still happen in a normal game with auras, but intensified. Their perspective of the world would change radically, with the emotional and psychological effects that this implies. After all, the power is free and passive; it cannot be turned off like the other Auspex 1 power.

Am I interpreting this correctly? Should the PC be mind-blown? Or would spirits and ghosts be rare enough not to be such a big surprise for a kindred who already deals with the supernatural nightly, even in a town where the Hecata and the Spiral Dancers are active?

Also, can the users of Auspex see their own aura? Would they notice diablerie marks on themselves?

Edit: Changed the question about seeing your own aura as this is an Auspex power but not included in this first power.

So I'm playing V5 at a time before the invention of blood bags and one of the players was recently embraced by a more or less consensualist promethean elder.

As we all know, generally a recently embraced cainite is hungry as hell and will often enter the hunger frenzy state as soon as they wake up. Cruel sires leave the childe to fend for themselves, smart or kind sires provide a snack. Since blood bags don't exist, the blood bag must be a living being. How does a consensualist sire who generally avoids harming innocent humans deal with this?

Edit: Would it be realistic to "stop" the frenzied childe in the middle of feeding, saving the human? Could that snap the childe out of frenzy if repeated enough times with different (wiling?) mortals?