Soul

The aspect of Soul encompasses the spiritual plane and those that dwell on it like spirits, auras, and dreams.

Disciple and Demons
The Disciple regarding the aspect of Soul is Theodore. The Demons that can control the Soul are the azarii also known as the Reapers. Theodore and his azarii are capable of manipulating anything with the aspect of Soul.

Primarily, the task of the azarii is to take Spirits from dead Vessels to be placed under the judgment of the twin Gods. They are also in charge of placing Spirits of sleeping Vessels on the Dreamscapes and finding lost Spirits in the material plane.

Magic
The magic in Utopia that can manipulate the Soul is the Gehfollan branch of magic. The mages that practice this branch of magic are called Gehfol mages.

Spirits
Every Vessel made by Lewis has to have a Spirit made by Theodore. This Spirit usually has the same appearance as its bodily counterpart, albeit without the aspect of Mind or Mania and Light or Darkness.

A Spirit is capable of: exuding auras through emotion, persisting after its Vessel's death, and changing forms when separated from the Vessel.

The memory of Spirits and Lucidity
Spirits usually are not capable of remembering their life after their Vessel's death. They can only remember from other beings like other sentient beings. The Gods are also capable of bestowing memory upon Spirits, especially during a Spirit's Judgment.

There are exceptions, of course. These exceptions, Spirits where their memory is linked with their Vessel, are called Lucid Spirits and can remember their lives when they were still tethered to their body.

A Spirit is heavily emotional and can be controlled by the auras it exudes on its own. A Spirit heavily fueled by its own emotions becomes a vengeful spirit and may become unruly enough to stay in the material plane to cause mischief.

Auras
Auras are pockets of energy enveloping a spiritual being that is exuded through emotion.

Dreams
Once a Vessel sleeps, its Spirit usually escapes into the Hyperflux and stay there until the Vessel beckons its Spirit to come back. The Spirit, in this phase, stays in the two Dreamscapes (Opalescent Desert and Pitchblack Swamp) and experience dreams/nightmares.

When a Spirit comes back to its Vessel, it immediately forgets these dreams/nightmares unless their Spirit is Lucid, in which case they can remember what they did in a dream/nightmare.