Seasoned witches have been doing the same thing for hundreds of years.

Those "sphere's" you're summoning are not UFO's. They are DEMONS. Demons can take nearly any form they wish, and can enter into any living creature and even into some inanimate items, too.

When these weapons of war are moved around on the ground the demons show up to witness the death and dying and fear of the people involved in the combat and conflict. That's how they feed. Fear and death are their energy source!