This will be explained (not sure how well) in the next chapter, he has a force power that alters aspects of himself and releases them into the universe...

If there are demons, there should be gods, Abeloth and The Ones were considered the children of Celestials (Although it is an ancient Civilization, they completed a few god like acts, like shaping parts of the galaxy)by some so I don't believe it is a stretch for God like beings to exist or be referred too.