This is the backstory as a part of the Rising Force, Rebellious Seed of the Heretical Quatrains of the Great Doctrines of the Yuuzhan Vong:
Long ago, the chief deity Yun Yuuzhan, accepted that his children or crechelings were going to destroy his planet, Yuuzhan’tar. So Yun Yuuzhan created a seed from Yuuzhan’tar to form a new homeworld for only the Faithful or “Seed Saviors”. That planet would later be known as Zonama Sekot.
Then Yun Yuuzhan asked the goddess Yun Ne’Shel to break his body into pieces. Some pieces were scattered across the Universe, and some pieces were given to the Supreme Overlord and a selected few of the Domains. The body of Yun Yuuzhan would make intercession for all Yuuzhan Vong during their “MAAFA” across Void Space.
There was another piece of Yun Yuuzhan’s body that manifested itself as a “living crystal”. It was imbued by the raw power of Creation and the Force. Not just Dark or Light Sided powers, but the Unifying Power of the Force. This “living crystal” was a gift to the Mimbamian god, Pomojema and it was to be delivered by the Yuuzhan Vong goddess of redemption, Yun Shuno.
But when she attempted to deliver it on her “Ganapati Comet”, the god Pomojema failed to appear. Fearful she had failed Yun Yuuzhan, Yun Shuno placed the “living crystal” named, Asili Asikste, on an icy planet called, Khar Delba.
For millennia the Asili Aikste remained hidden until Sith Lord Naga Sadow discovered its presence through the Force. It led him to have a deeper sense into the Force unlike that he had ever experienced by meditation alone. He erroneously thought it was the Kaiburr Crystal and he trained to unleash more of its power.
The Asili Aikste was only to respond to offspring of the Yuuzhan Vong and the principalities of the Galaxy through a genetic pact. The Asili Aikste had the power to withdraw its knowledge. It was “knew” who can unlock its mysteries at the molecular genetic level. When the Asili Aikste failed him, Sith Lord Naga Sadow cast it aside.
By that time, his longtime rival, Sith Lord Ludo Kressh had heard of the crystal and how it gave insights into great powers in the Force. He believed in its mysticism and he stole the Asili Aikste hiding it in one of his most holiest places on the planet Rhelg in Sith Space. Eventually, Sith Lord Ludo Kressh was destroyed by Sith Lord Naga Sadow, but the lackluster crystal lost his interest in either of of them. The Asili Aikste became forgotten and lost in time…
Thousands of years later, during the time of the Galactic Empire, a Dark Sided child was born who ruptured the very fabric of the Force. The Asili Aikste awakened and thought that the rupture was the entrance of the faithful “Seed Saviors” of Yun Yuuzhan and their offspring. It believed that they had finished their travails. The Asili Aikste crystal rejuvenated itself and emitted a call through the Force to its genetic inheritors. But after millennia and the Rule of Two, knowledge of the call from the ancient Sith Empire had been lost.
Only Force Users who had inherited or mutated their genes to hear the call of Asili Aikste could respond. Those Force Users were specific: those born of the Yuuzhan Vong, those that had Yuuzhan Vong Biots that were mutated and those persons who accepted the true power of the Kaiburr Crystal from Pomojema, the god of the Mimbanians.
And thus sentient beings enter a new age of Force Use in the Galaxy…
Follow RFRS: The Other Kaiburr Crystal on Rhelg - Asili Aikste - The Call