Cosmology

The cosmology of Magic: The Gathering consists of several levels. Beginning with the most fundamental one, they look as following:

• Time stream - parent level in cosmology; each one constitutes a reality with its own multiverse. There are infinite time streams.
  • Multiverse - for example Dominia, the sum of all planes in a reality and the Blind Eternities that connects them.
    • Blind Eternities - "space" between planes filled by chaotic energies, mostly Æther and mana.
    • Planes - a self-contained world or universe, one among many in a given multiverse
      • Natural plane - natural occurring universe existing next to others in endless movement in the multiverse. Natural planes can contain as much as billions of galaxies, stars and planets or as few as a single island and are subject to any possible physical rules.
      • Artificial plane - artificial, small universe, usually created by planeswalkers who define its rules; artificial planes are unstable.