Just as the shining of a bright light inevitably creates shadow, so the birth of the Guardians inevitably gave rise to their opposites - the Demon Aspects of the Beam known as the Demon Elementals. Just as each Beam has two Guardians that oversee the well-being of the mortal world, so each Beam has a shadow side, and attached to this shadow is a hermaphroditic Demon Elemental that oversees the invisible world of speaking demons, ghosts, and ill-sicks. Although there are twelve Guardians there are only six Demon Elementals. However each Demon Elemental has a male and female aspect or self, each of which guards one Beam termination point. - The Long Road Home