These are just some thoughts I had about agency awhile ago. This is NOT doctrine, nor is it strongly backed by or based upon it; it is merely philosophy. It is also very disjointed. please feel free to correct or disagree with me on any point whatsoever, I would very much enjoy it :)
Before the world began there was a war, a mighty war in Heaven - which war is still wagging today - We were, and are, among the most valiant that fought; we were not merely fighting for ideals, but for truths, for beings. If we lost,we would not just loose agency and freedom, not only would love be made void and law cease to exist, but I would no longer Be. We would no longer have an Identity. There would be no individual; No self. We would be come "part" or "extensions" of the devil, for, we could not choose, we could not act, we could not think, we may have thoughts, but they would be planned for us, and we would have no ability to direct them, for that requires a will and a choice.
But we do not become "one" with him as we do the Savior: when we become one with Christ, we can grow, progress, and learn throughout the eternities, we can become.
When we follow Satan, that great serpent, we are being acted upon; we are not acting, we are not choosing, we are not progressing, we are not living. We become one with Christ, yet still individual, whereas with Lucifer, we are merely assimilated into the whole and used, not strengthened built upon or raised, but used, worn out, and spent, like a sponge that eventually wears away to nothing after years of use and can no more be joined together.
That's why so many people now have to be special and unique, it's what they fought for! And those coming down to earth now are the ones that fought the hardest for it.
Every law of man, every government and every action either infringes upon our agency or allows it to flourish.
We must have opposition in order to become. If there was no opposition our life would be as someone pushing a lump of clay from one side, it doesn't do much other than make it fall over into a worthless clump that is utterly unidentifiable; but if you have pressure on it from all sides, especially when that pressure is being applied by a wise hand, it will form a beautiful sculpture.
Btw, I wrote this before I read the Screwtape Letters, so it's all original thought.
