The Great Astral Spirit, also known as Rena's Great Spirit, is the will of the planet Rena taken form, and the overarching antagonist of Tales of Arise. It is the mastermind behind all of the events of the game, and the sentient amalgamation of Rena's astral energy. To continue surviving, it constantly harvests astral energy, a process that has rendered Rena into a vast hollowed ocean. Its hunger for more energy is unending and will not stop until it has absorbed all of existence.