Obviously, we don’t become perfect in this life. I know a lot of dead people and many of them were very altruistic, but none of them were perfect.
Even if you believe in reincarnation, I don’t know anyone alive claiming they’ve reached the ultimate in human possibility.
Christians generally believe they are called to become like Jesus, though accepting His saving grace is the ticket to heaven, not reaching perfection.
Catholic Christians used to see life as unfinished on earth for most of us, leaving us dependent on those left behind to pray us the rest of the way. I think that may be being reevaluated these days. I don’t have a theology that would make sense to everyone, but personally, I think we are all dealt a different hand, so the finished product won’t be the same. Only God will know if we’ve done the best we can with what we have. And in my own life discovering Jesus as not only a model, but a source of grace for growth made a difference in my persevering in playing the hand I was dealt. As to reincarnation, maybe I just don’t want to go around and around again, but somehow I think the whole is greater than the sum of the parts. And that means I just have to become the best imperfect me, that I was created to be. Like a jigsaw puzzle, I just have to fit a particular small space to become part of the perfect whole. It’s about growing into the unique, irregular shape to fill my designated space, which won’t require me to be anyone else’s idea of perfect. And all of life, the good, bad, easy, and difficult shape me. Again personally, without Jesus fleshing out the unconditional love of the Creator, I think both some of the blows that life has dealt me and some of the mistakes I’ve made would have shattered me beyond repair. So, for me Jesus is my source, my way, my Savior. But also, many things that are true and good in non-Christian religions have been used by God to affirm my faith and clarify my vision of God’s plan for my life. And actually, the mystics of all the world’s major religions say the same thing. That we are all parts of a greater reality. We literally are all one. So, what we do to anyone, we do to Jesus and the whole puzzle, which includes ourselves and everyone else. Can’t you just picture yourself making it out of this life and finally “getting the whole picture.” I can just see me slapping the side of my head and shouting,”WHAT WAS I THINKING?!!”