Yeah, I think we need to agree to disagree. Heh, perhaps there are differing interpretations among Ouramancers themselves? Gods and spirits give conflicting answers, and [i]no one[/i] quite knows how it began, where the first Ouramancer bloodlines came from, or why it develops in certain people and not in others.

Remember also that one must be a Magestrava before she/he can be an Ouramancer, so even among the bloodlines such individuals are rare (due to the random nature of magical talent). The bloodlines only mean that the Magestravi who are born to that line are invariably Ouramancers, not that there will be more Magestravi in that bloodline than there are in others.

EDIT: I guess the thoughts are similar... My main point is just that the spirits (whether they are benign or not is irrelevant, as long as they want influence in the physical plane) see the Ouramancers as [i]necessary[/i], because they are the only mortal beings who can cross the bridge and interact with both sides.