Aether

Aether is a substance that takes various forms dependent on what reality within the multiverse it is in, whether it be magical, material (or both) in nature. All forms of Aether have a few traits in common however. First of all, Aether, within the multiverse, is derived from the dreams and nightmares of beings that originate from the Genesis reality. Second, all realities within the B & C spheres were created by this Aether. In the case of realities that do not contain Aether, the Aether within that reality has simply materialized into various structural forms matching the physical laws of that reality and no longer shows any signs of its Aetheric energy.

Majority of Magic and Fantastical technology within the multiverse is powered by various forms of Aether

Dream Aether
Dream Aether is Aether that originates from the good dreams (although not exclusively good dreams) of Genesis beings. Dream Aether is the type of Aether that created majority of the B sphere realities within the multiverse. Other types of Aether are still present within the B sphere but do not make up the majority. Dream Aether is not exclusive to the B sphere and can be found throughout the Multiverse.

Nightmare Aether
Nightmare Aether is the other side of the coin originating from the nightmares (once again not exclusively nightmares) of Genesis Beings. Nightmare Aether is the type of Aether that created majority of the C sphere realities within the multiverse. Once again other types can still be found with the C sphere as well. Nightmare Aether like Dream Aether is also not exclusive to the C sphere and can be found throughout the Multiverse.