[ ... Shrug. ] Supposedly. For the most part, at least. They're supposed to pull energy from this world now and again to help repair damage throughout the web of other worlds, but... It's not wholly clear what the means and what the overall effect might be.

Sorry that I'm being so glib about it. It's probably a really daunting idea for someone who hasn't been here for six years.

Shit kinda goes down here a lot.