Cascarilla is known to protect people from evil. It can drive away any kind of negative energy and second, it creates a wall between the natural realms and what is supernatural. Cascarilla is used to write on walls or make markings to keep evil spirits away. If you are a believer of Cascarilla, you can take a handful of this powder and draw a continuous line around your house. This will protect your house and your family from harmful energies. People in Santeria also go on to draw different symbols like objects or crucifixes.