I haven't read Gary's work specifically but I am familiar with a course in miracles. It talks about how there is a gap between us and God that is so wide it's almost impossible to go all the way over. So instead of aiming at enlightenment directly, you aim at forgiving the entire world. Turning it into what it calls "the happy dream". Then when we have attained the "true perception" of a totally forgiven world, the gap is so small that God Himself will close the gap and take us home into Oneness.
The "happy dream" is the high 500's in Hawkins model and Oneness is 600. He talks about how to close the gap between them in this vid.
http://www.youtube.com/watch?v=UCGDXu9ZiFw