Psychic energy

Psychic energy was a type of energy that was purely psychic, being the force that powered mental processes.

Both the Nestene Consciousness (DW: Spearhead from Space) and the planet Siralos are made of pure psychic energy. ( Destiny of the Doctors) Silverberg energy was present when there are signs of psychic energy. (EDA: Alien Bodies)

The destruction of planets by Zanak liberated energy of many different kinds, including psychic. This powered the psychic abilities of the Mentiads. (DW: The Pirate Planet)