“The full awareness of the Atonement, then, is the recognition that the separation never occurred. The ego cannot prevail against this because it is an explicit statement that the ego never occurred. (T-6.II.10)”
The separation occurred only in illusion, when our minds became mad from a “tiny, mad idea” about which we forgot to “laugh.” Because we are a part of God, separation is actually impossible. This is the full awareness that the quotation tries to cover.
We need to turn aside from the ego, and we can do so, particularly, when we realize that this “part of belief” about ourselves never actually occurred. The ego will not be destroyed, but will simply cease to seem to be. We will be Awake, and these vestiges of madness, insanity, will fall away.
The future looks bright with such a prognosis, doesn’t it? We simply turn aside from belief in that which could actually never be, and we return to being co-creators with God, creating in like Mind and living in the Love with which He created us. What this creation will look like, nobody can say. But it will be free of pain and suffering in the illusion that we made for ourselves. We will dwell in peace. And what more could we ask?