Readers interested in spirituality live in an amazing time. Bookstores, libraries, and the Internet provide information on all manner of traditions, from the most orthodox to those that, a few centuries before, would have ensured a quick trip to the stake. It is hard for us to recall that, even a few decades ago, books on occult topics were quite difficult to come by. One such book that has lived in infamy is Der Lange Verborgene Freund, or "The Long-Lost Friend." Now newly updated, editor Daniel Harms explains its importance–both yesterday and today.