Sanity's relative, and memory in flux.
Psiolic are professional casters whose capabilities reach beyond the standard caster's grasp of the Meta. Most achieve this title through a mix of academia and personal experimentation.
The physical manifestation of corrupted meta
A solidified mass of Meta
A battery of meta and memories which all Sophont have. It appears somewhere during puberty, triggered by some junction between self-awareness and interacting with other Sophont with Souls.
Breath of The Wheel, Mastery of the Cosmos
Controllable extensions of the Soul which Humans alone can create and control.