I remember someone mentioning a while ago that this universe was collapsing. He described it as a rotten branch hanging over a lake or something like that, and that most entities were just ignoring the problem.
Today in a podcast they mentioned in passing how some guy explained that low level entities haunt crystals and suitable vessels more and more because they are being pushed out from other planes which are collapsing and they have no option but to come here. Kind of interesting.