Thread:Trailblazer101/@comment-32644080-20181215195511/@comment-27837351-20181215203045

The Aether is merely a physical form that the Reality Stone took upon while it was locked away. The Reality Stone can not only change the reality around it, but it can change its' own appearance as well. THat's why it was a liquid (which was dubbed as the "Aether" by the Asgardians) in Thor: The Dark World, and later changed its form to a solid stone when in Thanos' possession to fit in the Infinity Gauntlet. The Aether is just one of a multitude of different forms that the Reality Stone can take on, yet it is not a seperate "containment unit". A containment unit contains the stone, not is the stone.