This item is from the Millennium Edition of the alt.healing.reiki FAQ, by Scott Maxfield (v2.001).
The views expressed herein do not necessarily reflect those of the author or of the posters to the newsgroup alt.healing.reiki
No guarantee or warranty is expressed or implied in any form and no liability is accepted for any harm arising from use or misuse of this information. In medical matters always seek the advice of a qualified medical practitioner.
The history of Reiki will be briefly discussed elsewhere in this FAQ under the question "Who was Mikao Usui?" As for where the Reiki energy itself comes from is indeterminate and a matter for speculation.
For those who profess belief in a deity it is said to come from that deity (e.g., God/dess, Wakan Tanka, the Great Maker) some say it is a background energy field that the Reiki practitioner taps into, others that it is channeled through them by "spirit guides". Reiki flows through the practitioner but is neither generated by the practitioner nor depletes the Reiki practitioners own energy supplies.
(The source of Reiki makes for an interesting epistemological and ontological argument, since the source is widely regarded as metaphysical, hence, beyond science and so unable to be proved except by speculative methodology.)
Also take a look at Reiki Treatments in Vancouver if you are in the area.