Evil is much like growing pains which is temporary. There was no evil when we were part of the breath of God. There will be no evil when we are as Jesus is, perfectly One with the Father, and God fully manifest.
Evil only exists in our minds because when we have become conscious, we became aware of what is darkness and what is Light. (Much like the experience of Adam and Even upon eating the forbidden fruit).
We became conscious that we live in a world of duality – of day and night, of good and evil. Here, we are given a choice – to choose light and manifest fully or to choose darkness and go back to the unmanifest.
Personally, I don’t think we will ever go back to the Unmanifest. But we can delay our progress, and God’s plan of manifesting fully in our lives.
In choosing darkness, we choose to remain in suffering longer, and hence we suffer the more, because it is not our natural path. Pain will help us eventually because we’ll get tired of it. We’d wake up from our stupor and finally allow God to manifest in our lives.
Adam and Eve could have stayed in the garden of Eden forever, as part of God unmanifest, and it would have been good. There would have been no pain. But they chose the fruit of knowledge, to be conscious of light and darkness and begin the path of manifesting towards the manifest.
It was Jesus who redeemed mankind. Jesus was the better Adam. It was the nature of life to be better, but at the cost of temporary pain.
Things are always perfect – whether the unmanifest, the state of manifesting, or the fully manifest. You think about evil. But evil is nullified by the greater good that overcomes and manifests. Things are always in balance, in perfection, like when all else is yet unmanifest.
God is perfect. God exists in all respects because to God there is no time. God transcends all time and God is the unmanifest, the One manifesting, and the fully manifest at the same time.