It varies. Some sacrifice physical objects that mean something to them, others use a more spiritual path. I suggest trying to connect with the Force to get it to banish.
[He's too drained right now to remember to tell Obi-Wan the ghost will attack him. He'd experienced it when he'd seen Ben's ghost in deer form.]
[Maul nods. Give the man a project instead of letting him sit there and wallowing in his grief seems like the best strategy.]
I--
[But Maul can't tell him he's sorry about what happened because he doesn't feel bad. He's not quite there on the path of his own personal quest towards becoming a better person.]
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[He's too drained right now to remember to tell Obi-Wan the ghost will attack him. He'd experienced it when he'd seen Ben's ghost in deer form.]
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I--
[But Maul can't tell him he's sorry about what happened because he doesn't feel bad. He's not quite there on the path of his own personal quest towards becoming a better person.]
Take care, Obi-Wan.
[That's as close as he can come to saying it.]
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