Cascarilla is a spiritual powder believed to possess protective and purifying powers. It is commonly used in rituals for protection and cleansing, creating a protective barrier around spaces, and purifying the body before and after spiritual ceremonies. The powder is also used as an offering to spirits and in divination practices. It is used in spiritual baths and mixed with other ingredients to cleanse the body and remove negative energy. Cascarilla can be used to mark the skin or objects to create a protective barrier.