Ahu (Gazelle) is any of many antelope species in the genus Gazella or formerly considered to belong to it. The name gazelle comes from Arabic name Gazal.
In mystic concepts, Ahu (Avestan) [from the verbal root ah consciousness of life; cf Sanskrit asu] Sometimes Ahum, Akhum. The most aware and therefore best prepared to rule in the physical world. Fravashi, on the other hand, is least aware of the material world and yet is the source of awareness and closest to the source of absolute Being. According to later Pahlavi writings Ahu's task is to establish order in the human physical body; therefore it can be considered the ruler in the physical world.