Re: Other than chaos and order...
I've never heard any one definitive defenition on what the difference between an angel and a demon is, other than angels are servants of a montheistic diety, demons are not. I've seen chaotic behaviour patterns in angels and I know a demon that which is so orderly in all his ways that sometimes he makes me think he might have OCD. There are so many things that which have been called "demons" by followers of other religions that it's almost impossible to know what is and what is not "a demon". The lines of the definitions blur and sometimes overlap.
So yes, other than chaos and order, I'd state natural forces, god-forms of any kind, and perhaps even strong emotions, as possible sources of entities that which we "could" define as celestials and/or demons.
Just my 2c.
"Those who can't approach discussion with a basic level of intelligence and maturity shouldn't expect to be taken seriously." ~ Qualia Soup