Some Goofy Questions about Preaching and Dominion

[tinkthank]

I am wondering about the effects of Dominion in battle. We have all noticed that dominion-dependent units will have seemingly contradictory information regarding HP (and other stats) in battle, e.g.: Basic HP: 100 Dominion Bonus: +50 Current HP: 200. Sometimes these stats will change during the course of a battle, without the unit in question having taken damage or having drained life. I still havent figured out what the heck is going on, but I am wondering if it has something to do with this:

Since the effects of Prayers take place before movement and battles, does the game draw some sort of average between the dominion before the battle and the dominion after battle?

Here's another one:
If province X has, say, dominion +2 on turn Y, and I see this, and fly in (by non-magical means) my immortal Phoenix to singlehandely (or more accurately: single-beakedly) capture this province with little risk of "dying", can I be brutally suprised on turn Y+1 by, say, having province X contain 15 enemy stealthy preachers, so that turn Y+1 starts off as, say, Dominion -2, and hence my Phoenix, if "killed", will be "really" dead? How does this tie in to those changing HP- and other stat readings you get in-battle?

(Just as a reminder:

RECRUIT
RESEARCH
EMPOWERMENT
FORGE
RITUALS
MAGIC BATTLES
SEARCH
++++ PRAYERS +++++
BLOOD HUNT
LUCK
ASSASSINATIONS
FRIENDLY MOVEMENT
+++ MOVE BATTLES ++++
STORM CASTLE
ENCHANTMENTS
MAGIC ITEMS
SNEAK
BUILD
SPECIAL ORDERS
INCOME
STARVATION
UPKEEP
DOMINION
SITE EFFECTS
HEAL
MERCS
SCOUTING )

[Chazar]

The dominion bonus to HP is a percentage bonus, isnt it? Maybe the display just shows that percentage related to the current HP?

(i.e. lets say you fight in positive dominion, giving you 50% bonus to HP, and you have 100 base HP:

-start:
150HP total, info: 100HP BASE, +50HP Dom-Bonus
-taking 50HP damage:
100HP total, info: 100HP BASE, +33HP Dom-Bonus

which makes some weird kind of sense, since of those 100HP remaining, 33HP are due to the bonus. Or in other words, of those 50HP damage, 17HP were 'deducted' from those 50HP gained by Dominion (wheras 33 where deducted from ordinary HPs)
(Of course, I do not mean this literally: I think the game just keeps a single number for the current HP, and the info screen routine takes this current value for translating the fixed dominiont bonus percentage into a number (instead of the base HP as it should.))

...but that is just a random guess of mine, and I dont have the game right now to check it.