How about the aptly-named 'The Higher Self' by Cheepak Dopra?

http://www.nightingale.com/prod_detail~product~Higher_Self.aspx

If you buy it, go to Amazon, and buy it at a discount through a Marketplace company called 'Unlimited Motivation'. It comes directly from Nightingale Conant but at a steep discount.

Synchrodestiny is good too!