(OLD) Munday: Flawed Good, Virtuous Evil

Prue's greatest flaw would be considered pride, at first glance.  But considering the origin of that -- the relentlessly unattainable approval of her dead mother, a grandmother who relied on her too much, all internalized -- it really just seems purely tragic to me.  The real problem Prue has is that her sisters have been there all along -- without her level of memory, sure, but there -- and yet she just can't find it within herself to trust either of them enough to let them share, now  as adults sharing a destiny, the emotional weight on her shoulders.  She has trouble doing this with anyone, but the degree to which she can't open up emotionally to her own sisters is remarkable.  And it drives a wedge between them, and leads to disruptions like Prue's astral id shattering the first take of Piper's wedding.  It's plot relevant, furthermore, because little by little guess who she's going to be able to build that connection with?   Cole.  

The Source's great virtue is his insistence on ritual, on going through every ceremonial step.  He didn't have to have them marry, although his (canon-established) love of the mindscrew heavily suggested it.  He didn't have to approve the conjuring of a cavern into a space modeled on a San Francisco apartment.  And although he did want her own power ipso facto, he did not have to call Prue before him, any of the times he did and will do in the story.  He didn't have to, but he did, for the mindscrew.  And yet, what all this ceremony did was twofold: it tied Prue and Cole together in the roles of husband and wife, giving them some basis for partnership, and 
it kept them focused on the surface, and thus, everything else they had in common.  He meant to hurt them, and he did do that, but it was just enough to make them more than "thrown together."