If you think about the Universe as kind of a management structure, with The Creator (not a person but an energy like sunlight or flowing water) at the top, the next level of authority are angels and demons. Both of these creatures have limited to no actual interaction with human beings, and they know for a fact that they’re on a higher level than we are. They see us maybe as fish in an aquarium? Hamsters in a wheel?
Either way, angels only “protect us” (in a more vague sense, like watching over the whole world) because they are instructed to. If anything, they’re resentful because they don’t get to live real lives- they never know the agony and ecstasy of being human. Their entire existence is complex, difficult work, the task of literally holding the fabric of time together and maintaining the balance of the Universe (that is not the same as “saving the world”- we are responsible for what we’ve done to this place, not them). I mean I’m sure they have other things that they’re responsible for, but it goes beyond the scope of what I can imagine.
And demons are similar in that they don’t really interact with humans outside of sucking them dry to power themselves- essentially using humans as batteries. And they do that by luring humans into trouble, into selfishness, into outright evil. I watched a documentary about cartels on Netflix and they talked about the members laughing hysterically as they burned a man with a blowtorch and chopped bodies into pieces. That’s what it’s like to be the power source of the darkness.
It’s Destroy vs. Create, Harm vs. Heal, Give vs. Take every single second of every day for all of eternity.
I picture angels like soldiers or warriors. Skin made of armor, eyes filled with fire, extraordinarily tall (like nine, ten feet), with faces that are both beautiful and terrifying, and ethereal to the degree of not resembling humans much, if at all. I imagine if you really saw an angel, it would shatter your brains. I think often when someone says they’ve seen an angel, they’re really seeing their guardian. Again, I don’t think angels are ever given specific humans to care for, but honestly- what do I even know? I could be entirely wrong.
Demons are much more into using their appearance to control and terrify. They’re more accessible because they’re lower creatures. They think they have the same power as angels but honestly, and this shouldn’t be a shock, but goodness love and kindness are infinitely more powerful than lust power and selfishness.