CaptainWacky
I want to smell dark matter
Could it be that Ben "takes away your pain" in a similar way to Sybock in STar Trek V? That would explain Jack being all serene and piano playing, perhaps Ben helped him get over his father's death or some other issue, MAYBE WITH HELP FROM A MAGIC BOX OR SOMETHING and now he'll do the same to Locke just like Sybock did for McCoy by letting him kill his dad in a dream or something.