Reiki promotes:

Reiki is a Japanese word meaning 'Universal Life Energy', whiich is all around us. Reiki is a gentle energy, channelled through hands of the practitioner, which will surround you with a loving energy helping you to release old, unhelpful, feelings and encourage self esteem, confidence and promoting personal growth.

There is no belief system attached to Reiki so it is open to people of all faiths.