Terrasphere - The way things appear on the surface of perception.

Mythosphere - The layer of mythopoetic archetypes on a planetary level.  Corresponds to the subconscious mind on the level of the individual.

Mnemosphere - The collective layer of planetary vibrational impressions which influence one's individual path.  Equivalent to the collective unconscious of the self.

Akasphere - The distilled layer of form where the building blocks of identity known as aka can be perceived.

Aethersphere - The elemental level of form beyond the constellations of aka where all things dissolve into the primal elements of earth, air, water, fire and ether (space).