(I didn't get an email of this one. I saw it in my daily digest. If it becomes a pattern, might have to try the unsubscribe and resubscribe)
Moving on, I disagree that anything can be reduced to we all have one purpose as you have attempted to do here. I think perhaps your jumbling up a few concepts. Or perhaps you're saying something that might be true of the people that seek your guidance but not universally applicable.
Here's a Hermann Hesse quote that resonated with me when I read it over 11 years ago:
"The way to innocence, to the uncreated and to God leads on, not back, … ever deeper into human life. … Instead of narrowing your world and simplifying your soul, you will have to absorb more and more of the world and at last take all of it up in your painfully expanded soul, if you are to ever find peace. This is the road that Buddha and every great man has gone, whether consciously or not, insofar as fortune favored his quest. All births mean separation from the All, the confinement within limitation, the separation from God, the pangs of being born anew. The return into the All, the dissolution of painful individuation, the reunion with God means the expansion of the soul until it is able once more to embrace the All."
Is that similar to what you describe in your story? It doesn't describe a universally applicable purpose. It does describes a possibly universally applicable path.
You talk about conditioned self and source self. I understand those concepts. I agree we ebb and flow in and out of the two being aligned. But can we say that the universal purpose is to move from conditioned self to the unconditioned self? I don't think so. We/our souls all come to experience certain things. What if a soul comes to experience what it's like to live an entire life as a conditioned human? In that case, the souls purpose is not to break conditioning but to stay conditioned.
What about the soul that came to be a murderer, either because the soul agreed to fill that role in some other souls life plan or to experience what it feels like to murder, or both. How does that fit into the we all have the purpose of breaking our conditioning concept.
As I type this, I think my point simply is it's all too fucking complicated to reduce it to a one size fits all answer. The need or desire for such answers is right there human conditioning.
There is much that you wrote that I do agree with. The example you gave about marrying different versions of the same man 3 times until you could see it and break the pattern by changing yourself, is something that myself and many can relate to with respect to various aspects of our lives.