Psionics

A third form of supernatural power, psionics, is manifested purely by mental discipline. Psionics is divided into six disciplines, or groupings of powers, which several psionic character classes are forced to choose one of—thereby losing access to the most potent powers of the others:

Clairsentience 

Clairsentience powers enable you to learn secrets long forgotten, to glimpse the immediate future and predict the far future, to find hidden objects, and to know what is normally unknowable. A psion who specializes in clairsentience is known as a seer, and is most akin to an arcane diviner.

Metacreativity 

Metacreativity powers create objects, creatures, or some form of matter. Creatures you create usually, but not always, obey your commands. A psion who specializes in metacreativity is known as a shaper, and is most akin to an arcane conjurer.

Psychokinesis 

Psychokinesis powers manipulate energy or tap the power of the mind to produce a desired end. Many of these powers produce spectacular effects such as moving, melting, transforming, or blasting a target. Psychokinesis powers can deal large amounts of damage. A psion who specializes in psychokinesis is known as a kineticist, and is most akin to an arcane evoker.

Psychometabolism 

Psychometabolism powers change the physical properties of some creature, thing, or condition. A psion who specializes in psychometabolism is known as an egoist, and is most akin to an arcane transmuter.

Psychoportation

Psychoportation powers move the manifester, an object, or another creature through space and time. A psion who specializes in psychoportation is known as a nomad, and has no arcane counterpart.

Telepathy

Telepathy powers can spy on and affect the minds of others, influencing or controlling their behavior. A psion who specializes in telepathy is known as a telepath, and is most akin to an arcane enchanter.

The standard psionics system incorporates psionics–magic transparency, which treats psionic energy and magic as mutually and equally vulnerable to any kind of magic-dispelling power; spell resistance protects against powers just as it protects against spells, while power resistance protects against spells as it does against powers. This is primarily done for balance, as if psionics were not resistible or able to be dispelled in such a fashion psionic characters would be inordinately powerful in a world designed mostly to handle traditional magic (although they in turn would also be especially susceptible to magic).