Like our Ancestors, we understand that there are shadowy forces at work in the world, and therefore we sometimes make offerings that they might take them, and then leave us alone. These shadowy forces are understood to exist both at large in the world (and on the astral), and within us.

For Protection of the Gathered Grove

Outside the fire, darkness;
Darkness outside the Grove.
Outside, there dwell shadows;
Shadows inside us as well.
Inside, outside, everywhere,
Where e'er you dwell, dwell not here.
Here is light and all good things,
Light and bright wisdom protect us;
Protect us from those who dwell outside.
(repeat as necessary)