“The Atonement is the final lesson he need learn, for it teaches him that, never having sinned, he has no need of salvation. (T-13.in.4)”
The “he” is an individual, a person, who believes in separation from God and wants a remedy that will take away all guilt and offer absolution from mistakes. This is the extreme reading in A Course in Miracles, in which we know that all the wrong that we have ever done, out of allegiance to the ego, was simply an illusion. Being an illusion, it is not unforgivable, and, importantly, Jesus asserts that it is only a mistake, not a sin. Being a mistake, it can often (though not always) be rectified by later action on our part. We have pardon.
To have no need for salvation is to understand the true meaning of the well-known phrase of a “journey without distance.” We find our way back from what we never left, but thought we did. That place is in God’s Arms, fully in communication with Him, fully in the joy of His Presence.
And this “final lesson” of the Atonement does pave the way for Awakening, which is our ultimate end in A Course in Miracles. We may not all reach it, but we all have the potential to reach it. We need realize that we need do nothing, that it is all done for us, when we leave off the guilt that has taken us into insanity. We leave off the egoic notions, and we find our way home in peace.
This is our journey without distance. May we all takes steps toward the joyous end of Awakening today.