TOP 9 TOOLS OF THE CRAFT: BELL
The ringing of a bell causes vibrations which are the source of great power. Variations of the bell include the shaking of a sistrum, a ritual rattle, or the use of a singing bowl. All of these can help bring harmony to a magical circle. In some forms of WIcca, the bell is rung to begin or end a rite, or to evoke the Goddess.
Hundreds of years ago, rural folks knew that loud noises drove away evil spirits and the bell is a prime example of a good noisemaker.