But this ...
is essentially what I was so futilely trying to say in my last few lines. That the confluence of those three events were a necessary condition for the eventual making of the long, winding and wearisome road that might eventually lead to Ada Unmarred.Thus, the Healing of Arda will come only through the allowing the full Tale of Arda to play out to the end. And each of these events, Míriel's death, Finwë's coming together with Indis and bringing her children into the world, the marring of Fëanor's birth, and even the unchaining of Melkor all are necessary components to the eventual healing of Arda. And in Manwë's words about the Higher Path I have gleamed some greater understanding of his seemingly naive and incomprehensible action of freeing Melkor from his bonds.
Had none of these things come to pass then Valinor would have remained static in it's perfection, the Elves would not have crossed into Middle-earth and the world would have been a lesser place. Out of the turmoil of great pain, as we know from the history, came great beauty and an even greater good.
Yes. Finrod speaks of the possibility to Andreth when he suggests to her that through the Edain the way might come.even the Marring of Arda leads in the end to greater things, because "Arda Healed", shall be greater and more fair than the original Arda Unmarred.
I'm not sure I can agree with you here. Surely all things are contained within Eru's thought and surely, with the Elves at least, the broad strokes of their lives are written on the canvas of the music? I think that I still stand by my assertion that only Men possess anything approaching free will.It seems clear to me now that this was NOT Eru's original plan, but that in actuality Eru never HAD a plan, other then to let Eä Be, and that whatever did happen He would then allow it to proceed to the eventual consummation of goodness
But I will give it more thought if I can.