The Dream walkers (Possible)

== Disambiguation ==
The Dream Walkers is the name given to the group of Gods who secretly rebelled against the others, and created a separate universe to learn the "secret wisdom" of humanity.
== Connection to Main Story ==
Not to be confused with The Dreamers, the Dream Walkers are actually the counter part; the dreamers are the gods who stayed behind, and the Walkers are the ones who rebelled, and were ostracized by the rest. But more specifically, the Dream Walkers were a specific group of Gods who nearly perfected the ability to create separate universes and travel between. Doing so, they invited other gods to join them in the human experiment, which in cannon, is the willing subjugation to normal life as we know it in order to attain special wisdom.
Some of these gods joined, and thus the human experiment began.
=== INFP's as the Dream Walkers ===
In line with Face of God cannon, characters have abilities that are based around their Meyers-Briggs archetype.
The Dream Walkers are actually what would be INFP's. 
In Silence or a book shortly after, Stacey starts having dreams of a distant galaxy; similar to her dreams in Heart, these dreams capture her attention being that they're so vivid. The reality of the situation is that she was once a Dream Walker, and although now she is human, the sense is awaking in her as her abilities manifest.
This distant galaxy shows a dark empty space, what is called dark matter in the real world, but in the FoG it's something more: the Silent. Stacey doesn't know what it is, and tells Eli about it, but it doesn't deter him from going on the Lambda Dio mission that the United States and various governments have funded. Although he and various others go (such as Aldorlian who can see into the void), they don't discover the truth of the matter, yet enough to make them wary.
== The Threat of the Dream Walkers ==
All of the gods who chose to become humans pose a threat to the Dreamers, or as stated, the gods who chose to stick with the unified decision to not seek the wisdom of humanity; however, the Dream Walkers are especially a concern because they can indeed more easily travel between the two universes.
In human form, Stacey for example can only envision this other universe in dreams rather than actually travel to it; but still, this is a smaller version of the ability. When Stacey does have dreams in Heart, it's suggested (though not officially cannon) that since she sees these "wrinkly skinned creatures," i.e. the Dreamers, they try to trick her by getting her to doubt her power as well as suggesting that the world should change to their standards--that there's a new world order as it were. 
The Dream Walkers possess a looking glass greater than even those with the Eye of God, because, according to cannon, each ability only works in universe. So for example, Aldorlian can only see things in the universe he's in. So anyone who has an INFP type is dangerous once they discover their abilities.
== The Secret Wisdom ==
Becoming human was a way to gain special knowledge because of one reason: the Gods in the FoG lacked empathy. 
Similar to the Greek or Roman gods, the Gods were probably unhinged. Somehow they understood that empathy, amidst their unending treasure trove of knowledge, wisdom, and revelation, was the one thing they needed to understand all things. So they devised a plan to allow some of all of them to suffer without sure hope--in short, to become human.
This concept is similar to those of Jesus, Hercules, Thor and others: a god who comes to earth to regain his divinity. After considering the ramifications, they realized that if they were to truly separate themselves, they may not return. So they officially decided to give up the idea. The Dream Walkers were the ones who secretly tried to do this themselves, and then invited others to do so.
More can be found on this page, but in short, the reason the series is called the Face of God is because this idea refers to feeling or empathy giving a human face to gods. The irony is that, though humans (in the real world) basically seek godhood in the form of riches, eternal youth, invincibility, love and neverending mirth, we could imagine that gods seek humanhood. And in the Face of God, these two opposites unite to create the narrative that drives the story.
== The Cave Motif ==
In Heart, Stacey's first dream starts with her in a cave, and in the second dream, ends with her entering a cave. The motif of caves is visited again in a future dream which brings her to an ethereal cave that has what looks like a suspended pool of water in it. 
The suggestion is that this is a portal, sort of like a stargate, but a metaphorical one. The motif of caves is used to represent entry and exit points via dreams to the separate realm/universe where the Dreamers are. 
Currently only a few mentions of this motif exist, but more may appear in the future.