Riutal of Returning ... dom2 Guru question

[Horst F. JENS]

please enlighten me, o Gurus full of dom2 wisdom:

What is the exact function of the Ritual of Returning spell (RoR) ?

I know that it's a Astral2-Spell and the description say that the mage would be teleported back to the home citadel as soon as he is wounded. However, my playtesting shows that this is not everytime the case. (i have no domes on my home citadel). I wonder why:

Has it to do something with friendly dominion only, like immortality ? i managed to loose mages in friendly dominion, but never got a sucessfull RoR in enemy dominion..


Has it something to do with "not while assasination" ?
So that the "there is no whitdrawl from assasination" - statement overrule the RoR description ? (I lost my Black Forest Ulm Assasin mage)

Does it only work when the mage is wounded, but not (yet) killed ? This would make sense from the spell description, but it raise another question: What is the spell good for ?
If my low-hitpoint mages can't use it then only high hit point, astral beings can use it. Like golems. But what's the point ? High Hit Point Astral beings should stay on the battlefield and fight, not chicken out home after the first hit...
Can it be that the spell work just as an astral king life insurance and is good for nothing else ? Please tell me how to make good use of this spell.