Vajralaya was an enigmatic planet in the unknown Vairocana system, which was located in the uncharted part of the Colonies. As the planet was not located on any known hyperlanes, it remained undiscovered until 4635 BBY, when Republic explorers discovered it by accident. The planet was inhabited by the Vayrajana, a Human subspecies of Force-users who harnessed the Force through incantations.
The planet was an extremely strong Force nexus, as a consequence all Vajrayana were Force-users and did not seem to age beyond adulthood as long as they remained on the planet.