Kel'eth Ur is a fictional light-sided Sith developed by BioWare for the MMORPG Star Wars: The Old Republic. He recognized the virtue of serenity and harmony and challenged the Sith Emperor. Before his demise, he created a holocron containing a hologram of his himself and his teachings. The Emperor killed Kel'eth Ur and sealed Kel'eth's remains and possessions, including the holocron, within the Dark Temple on Dromund Kaas. The player discovers Kel'eth's holocron 963 years after Kel'eth Ur's death and may choose whether to recover the holocron or destroy it.
It's a lie. Fear is a lie. Passion, a lie.
Fear gives only temporary powers, and passion is easily manipulated. Real strength in the Force comes when one is no longer afraid.
And one can purge fear when one stops grasping – after power, after things, after life itself – and allows the Force to guide them. There is only the Force.— Kel'eth Ur, in Star Wars: The Old Republic
What I learned only lives on through this image and its device. Yet, I am one with the Force, eternal and at peace.
Take them – take my teachings to the Sith.They will find power there, but of a different kind – not of darkness, but light.— Kel'eth Ur, in Star Wars: The Old Republic