Telepathy

Telepathy is a psionic mental ability that enables one intelligent creature to send and receive thoughts to another intelligent creature and communicate without words or a shared language. A creature must have a language to use telepathy.

The use of magic is a common way to use telepathy.

Some creatures possess telepathy as a supernatural ability.

Some intelligent magic items can communicate using telepathy.

Mental Discipline
Telepathy is also a mental discipline or psionic sub-class. Any psion who focuses on this discipline gains experience and power dealing with psionic messages and control of other beings.