Od (Hebrew, AVD, “fire”), in magical philosophy, is one of three forms of fire associated with ordinary flame (fire) on the physical level and with the positive, electric form of subtle fire on the etheric level. Some sources associate this form of fire white magic, healing, and life.
Also Od (Lamnism) means light, a radiance that is the result of increased esoteric wisdom. A.G.H.
Greer, John Michael. The New Encyclopedia of the Occult. St. Paul. MN. Llewellyn Worldwide. 2005. pp. 339-340
Riland, George.The New Steinerbooks Dictionary of Paranormal. New York Warner Books, Inc. 1980 p. 209