Witches' bells are a protective charm often used in various folk magic traditions, typically hung on a house door to ward off negative energies and invite positive ones. The bells' tinkling sound is believed to disperse negative energies and alert the home's inhabitants of a visitor's presence, whether physical or spiritual. Furthermore, the sound can be utilized to invite specific energies or spirits into the home based on the practitioner's intention. However, the understanding and practices associated with witches' bells can widely vary, depending on cultural and personal interpretations.