Ara Mitama represents aggression and forcefulness and is the source of valor, anger, passion, and other heated emotions. It is said to be the more wild and untamed side of the dualistic nature of the spirit. It is usually considered oposites to Nigi Mitama.
Fusing any demon with an Ara Mitama will amplify its St and En stats, increasing its physical attack power and defense. This can be freely done at the Goumaden, or with COMP Fusion provided the Steiner app is installed.
"One of the four great aspects of Shinto thought, it has the power to grant wildness and ferocity. It is said to aid in one's bravery, growth, and endeavors, though it can lead in a negative direction."
—Shin Megami Tensei: Strange Journey Compendium
Ara Mitama is the lowest leveled mitama in the game. Using Ara Mitama will boost a demon's stats by ST+2 and AG+1 along with transferring useful skills onto a demon.
Ara Mitama is the second highest level Mitama, the only one with a higher level is Nigi Mitama. Fusing a Ara Mitama with a demon raises the demon's Strength and allows for the reshuffle of skills.
"One of the four great aspects of Shinto thought, it has the power to grant wildness and ferocity. It is said to aid in one's bravery, growth, and endeavors, though it can lead in a negative direction."
—Devil Survivor 2 Compendium
Like all the other Mitamas, fusion for Ara Mitama can only be unlocked in a New Game Plus.
Ara Mitama in Persona 4 The Animation represents the bond shared between Yu and Chie. It was first summoned during the battle against Shadow Yukiko, and later against Shadow Mitsuo to protect Yu and his friends from their attacks.