Psychic energy

Psychic energy was a type of energy that powered (or was powered by) mental processes.

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

The destruction of other planets by Zanak liberated energy of many different kinds, including some on the psychic spectrum. This powered the psychic abilities of the Mentiads. K-9 Mark II had the power to track mental wavelengths of psychic energy. (DW: The Pirate Planet)