This is done as a protection against curses, witches, and demons.

Things become more difficult in the later missions where you will also run up against witches and "ghostbreakers" who can banish your ghosts.

As a thaumaturgus, he was invoked against witches and devils.

By contrast, there is still no evidence for Sumerian incantations against witches.

Proof against witches, Conrad remembered; it was one of the few herb-uses he knew.

The Africans saw witchcraft as a powerful influence on their lives and frequently took violent action against suspected witches.

Apparently his miraculous luck didn't work against Wizards and witches.

In the Middle Ages it was also considered a fine defense against witches, and useful for restoring hair.

They periodically fought for the fertility of the fields against male and female witches.

He well knew the futility of trying to contend against witches, so he gave up discouraged.