Holy crap! This reminds me of Inception! So maybe time flows differently in their dream/illusion than in reality... but I wonder, what will happen when or if they snap out of it?

Also, if it is really a shared sort of dream... and you die in your dream but can't wake up out of it, would you die? Maybe that happened to Belkar. Maybe when he died in the dream, he forgot to keep breathing in reality. Then, as we see... there's never really any good ending in there for Belkar. Yes, it could be guilt like he wished it was dead and like this. Or maybe it could also be he can no longer contribute for one reason or the other.