This is a quick summary of Angels, demons and other mystic spirits.
In the biblical worldview there is theological/cosmological duality which means God is distinct from his creation. However, God is present in creation and he endows the elemental forces of nature with personal attributes. These “spirits” act as God’s agents in the cosmos serving as intermediaries between the heavens and the earth. This is known as theological/ontological duality, that is, there are other supernatural beings apart from God.
These spirits are neither divine, human nor are they simply literary personifications of natural entities. They are meta-personal beings which means they have a distinct kind of personhood which is not fully human or divine.
Spirits are somewhere between personal and non-personal creatures and they are means through which God acts intimately within his created world.