A friend's question wakes up the Little Girl. The answer comes.

"So, you question us on matters of Good and Evil," says the angel, Micha'el. "We have been here before, have we not?"
"I have," she says. "But not with you. And my questions weren't really answered."
"Perhaps they were. You just couldn't comprehend." The angel sighs.
"Then what was the point?"
"Fair enough. I will begin again. What is it you wish to know?"
"These meetings with you and the others...could the same thing happen with your opposites? Could I meet with a demon instead?"
"This is not your question, but a favor you are fulfilling."
"What's wrong with that?"
"Nothing. Except people get their answers. Although they may not comprehend. We do our jobs as best we can. But you may act as a liaison this time, since you, too, are genuinely interested, if not in the actual meeting , then in the theoretical meeting."
"Ok."
"You must understand that the distance between an angel and a demon is vast. As vast, in fact, as the distance between you and I. An angel exists on a higher level of order. Not because we are better, but because of our natures. An angel follows a path and does not stray. A human being has freewill and therefore exists in chaos.
"Let us take the 'curse of holy'--of course, it is not really a curse in the manner of demons. This is merely a translation from the untranslateable. Holiness is not a curse, you see, but a covenant we have made. There is no way for us to break it, much like the Brit Millah cannot be broken. Skin cannot be grown back. Yet we see the freedoms of the human being, and the follies. It is a matter of definition. 'Angel.' We are messengers and you see, quite clearly, how we often fail."
"But that's because people aren't listening properly. Or listening at all."
"That is besides the point. Whether one believes in our existence or not, whether one listens or not, it is our purpose, our reason for being--only to convey a Truth in a manner in which a person will comprehend. The 'curse of holy,' then, is our failure to do so and part of that failure is due to the difference in our natures. We cannot show you the beauties of Eternity. We can only convey the idea. If you merely glimpsed it, and I mean directly, you would die. You would lose yourself. Human beings are meant to live until their time is up. Then, you may see Eternity, but still in a different way than we do. You become it and we observe and remain couriers between Eternity and this, the Mortal World.
"And you, the human in this relationship, cannot show us the beauties of the Moral World. Nor can you show us the horrors. Sure, we comprehend the tragedy but we can never feel it. Yes, you will say that's a blessing. And for you, we are able to comfort you. But for the majority who do not listen, mostly because they do not know how, our inability to experience prevents us from being able to truly make a connection, to teach them how to listen when they don't even know we are here. Yet we persist, and gladly.
"And so you ask of meeting with demons and I will say that they are our Curse. You have met with demons many times. All of you have. For unlike angels who exist beyond this realm, demons are integral.
"Look at it this way, my dear: Every time you look in a mirror, you converse with a demon. Every time you encounter another one of the human race, you encounter a demon. Freewill is the creator of demons and the human race chooses. And yes, we angels fear that evil in you and yet, we are intrigued. The human race chooses and there are some who choose goodness, right over wrong, listening over deafness. Nonetheless, it is in the nature of Man to make mistakes, thus the demon in everyone, thus the residue of evil that forever lingers in the air you breathe."
"But aren't there some who are solid? Who possess people? Who have their own names?"
"Certainly. People allow themselves to be possessed in every moment. You have to understand that possession is not from the outside, but from within. And human beings are solid, are they not? And most of you have names, as do your vices.
"Most of you are mongrels, good and evil mixed. To meet with a demon directly, you must merely make a choice. You have already made it, have you not?"
The Little Girl smiles: "I have. I'm talking with you."
"Yes. You are."