Is REIKI allowed to be learned/practiced? And is one allowed to have REIKI done on them?
Having RIEKI done on oneself or practicing REIKI (spiritual energy healing) is controversial. The origin of REIKI comes from pagan worship, as the word RIEKI comes from REI= spiritual knowledge, KI =energy (in Japanese). RIEKI in its original form, was done with mantras that involved saying special names etc. and is forbidden according to all authorities, as it is a form of idol worship. There is however a modern form of REIKI that does not involve mantras or any prior beliefs; on this type there is controversy if it permitted or not. Some authorities don’t allow it for one of two reasons, either since its source is from avodah zara it is not permitted, even though the actual REIKI isn’t being done with avodah zara. A second issue with it, is that any type of healing that isn’t considered natural, but uses spiritual forces is considered sorcery and forbidden.
On the other hand there are authorities that permit it. Their reasons are because this kind of REIKI doesn’t involve avodah zara, and because they hold that energy healing is a natural phenomenon and not from sorcery. If you choose to have REIKI done on you or to practice it, (or any other type of spiritual healing) I would suggest that you call Dayan Krauss to get directives of what may or may not be done.
Those who forbid; Sefer Ki Lo Nachash B’yackov, Kuntres “Al Tifnu”, R’ D. Morgenstern, R’ Fenger shlit”a. Those who permit; Amshonover Rebbe, R’ K. S. Gross, Dayan Krauss ( England).