Yeah, it'll give you a bunch of useless crap, and sometimes something really handy. I've gotten clothes, boots, a sword, even. Magic amplifying talismans that are the absolute shit.
And the dreams have also killed me, once. You can't opt out. Lucky me, I was resurrected all in one night as the dreams went. So I didn't feel a thing, just woke up to a bed full of blood from having a hole in my stomach.