Infinite Light side points on Korriban in Shyrack cave
When in the hidden tombs inside the Shyrack cave on Korriban, you will enter a dialogue with Kreia. It does not matter what you choose until your friends materialize. At first, side with them and say that Kreia is a Dark influence. Then, when she protests, side with Kreia to defend her. You will receive Light side points, and Kreia will remain there until you choose differently.