Speak with Jol in the Vindicators' Sanctum of the Exodar.
The path of the Light and purity is not an easy one to walk, [player]. Even I, at times, struggle with following its course.
You should seek out my master, Jol, at the Exodar. She trained me when I was beginning my journey, and I believe she will find in you a new star pupil.
You will find Jol in the Vault of Lights of the Exodar at the Vindicators' Sanctum, a room surrounded by a vibrant glow of light.