He's a pompous ass, but the research he does with hypnotized people is compelling.
Reader's Digest version: when we "die" we go to a small pod of souls that we travel through "time' with and get refreshed, loved etc. and choose together to come back and work out lessons until we become so advanced we morph into source. He's anal and has it all mapped out with circles and lists, but it's cool because it all fits.