Nexus

"I've never seen something so... grand." "It's the Nexus of Kirana; the raw source of Force power in this world. We were lucky enough to find it here, and on Aran-Jal."

- Shamus Calway and Boomdodger Prudii'verda

The Nexus was the source of raw energies that only appeared on worlds strong in the Force. The only two locations a Nexus has been found was on Kirana, which prompted the Grand Republic to build Nexus City to build upon it, and on Aran-Jal, where the New Jedi Order built their temple.

If someone with approached a Nexus, their powers would be strengthened, and anyone injured would have their wounds ultimately healed, regardless of whether or not they were Force-sensitive. By 247 ABY, the Republic was attempting to find a way to gather Force energies from the Nexus on Kirana to transport it elsewhere.

Description
A Nexus was very rare, and only found on worlds that were strongest with the light side of the Force. The Nexus contained raw light side energies that could heal anything and anyone, and also return strength to Force-users that go near it. The Nexus of a world usually came from the planet's core, whereas if it did, then that showed that the world was the purest in the galaxy, although some Nexus' come from not as deep in the world, in underground cavern systems and whatnot, such as the one on Kirana - which was the reason the New Jedi Order constructed their temple on Aran-Jal, a pure light side world. The ones that went down to a planet's core were often called a greater Nexus, and those that did not go as far were called lesser.

Most Nexus' in the galaxy were made of pure light, although some were somewhat, if not completely, tainted by dark side energies. This could only occur if a world, such as Skornia, was pure in dark side energy, or if a dark side user managed to corrupt a Nexus. Although, only the strongest of dark side users were able to corrupt such a thing - Darth Spitea managed to corrupt the Nexus on Skornia in by conjuring all the energies she could muster.

There were only three known Nexus' in the galaxy, all of which could have been the only three ever. The rarity of a Nexus was greater than the rarity of finding a kyber crystal on a world that did not produce them, according to some.