Bells are a tool that have been used since ancient times. When a bell is struck it releases vibrations filled with power that resonates through the atmosphere. The bells fullness, tone and material determine a bells strength. Bells are often used to cleanse energies and keep evil spirits at bay. It is said that the loud high pitched sound of a bell being struck is intolerable to evil spirits and will drive them away. While some positive spirits enjoy the sound of a smaller and softer resonating bell.
In wiccan rituals a bell is a feminine symbol representing the elements of air and the Goddess. When struck at the beginning of a rite it is said to not only invoke the goddess but also to drive away negative influences. At the end of the ritual a ritual bell can be struck to disperse and clear any built up energy.