Supernatural Activity 2

That would continue naturally even if there were some incidents that would take place as some Spirits got involved with the natural world in some way once they had enough power, but such incidents would not compare to what Evil Spirits would do.

Many Spirits could find a way to coexist in the conditions they were born into unless they were provoked in some way, while Evil Spirits were far less predictable, mainly due to their instability.

They were heavily influenced by the negativity of humans that ruled over a large portion of their existence from the moment of their creation or when they turned from a Spirit into an Evil Spirit after falling to such negative influences.

The existence of Evil Spirits was always considered the primary threat compared to the Spirits, but their appearance could not be controlled too well.

They came from the emotions and the wills of humans, so that is what created them.