Aether ties into the concepts of Wuji, Void, the Sky, and Space - Outer Space. In eastern philosophies, Wuji meant something that was empty and infinite at the same time. It was also anthropomorphized in many Asian cultures into an entity called "Heaven" - which was a god, a substance, and a force of nature all at the same time. In extremely ancient Greece, Aether was the material that made up outer-space and was also what animals inhaled when breathing. Plato believed it was the "life" energy of the universe. It was also, hilariously believed that alchemists could formulate it by re-distilling alcohol seven times.