B ack in 2005 Rav Rephoel Szmerla of Lakewood decided to write a short kuntrus on the halachic permissibility of various types of alternative healing. In the end what he thought would be a six-month project took him a decade of intense examination: Do these practices utilize some yet undiscovered law of nature or do they harness a spiritual energy that could involve transgressions of sorcery and avodah zarah?