From Hank Kraychir, KoT
For the Initiates, this is not a Person, but a Force, created for good, but which may serve for evil. It is the instrument of Liberty or Free Will. They represent this Force, which presides over the physical generation, under the mythologic and horned form of the God PAN; thence came the he-goat of the Sabbat, brother of the Ancient Serpent, and the Light-bearer or Phosphor, of which the poets have made the false Lucifer of the legend.
(Albert Pike, Morals and Dogma, 1872, p. 102).