It's a...I'd call it a light side artifact. They're useful against dark siders.

[The blade is a small bright presence in the maelstrom around them, but a candle won't do much against such all-encompassing darkness.

...They can discuss metaphysics later.]

I have no intention of leaving anyone behind.

[Her voice is tight and unhappy more than it is determined. Not that Revan had been given much choice in the matter, but fresh as it is, the memory of abandoning Bastila to a Sith Lord still stings with a sharp mixture of dread and wounded pride.]

But first we need to shake that thing chasing you. Up for a sprint?