Aura (Aura Battler Dunbine)
Aura in the Aura Battler Dunbine franchise is the spiritual life energy that powers Aura Battlers. Pilots with strong aura operate the bio-mechanical units effectively; warriors from the surface world (Upper Earth) possess enhanced spiritual power and are particularly valuable—and dangerous—in the wars of Byston Well. The Aura Road can be opened by those with exceptional spiritual power, typically Ferario or bearers of the Wings of Rean.